From 10b750d85729818e34d3628f27db42527ddd941b Mon Sep 17 00:00:00 2001
From: Oleg Smirnov <oleg_smirnov@vk.com>
Date: Mon, 21 Dec 2020 15:23:54 +0300
Subject: [PATCH] version 2.6.0

---
 dependencies.gradle                           |   4 +-
 samples/app/sdk/src/.gitignore                |   1 +
 samples/app/sdk/src/build.gradle              |  66 ++++++
 samples/app/sdk/src/main/AndroidManifest.xml  |  56 +++++
 .../main/java/com/vk/sdk/sample/PathUtils.kt  |  43 ++++
 .../com/vk/sdk/sample/SampleApplication.kt    |  42 ++++
 .../java/com/vk/sdk/sample/UserActivity.kt    | 217 ++++++++++++++++++
 .../java/com/vk/sdk/sample/WelcomeActivity.kt |  76 ++++++
 .../com/vk/sdk/sample/models/UploadModels.kt  |  36 +++
 .../java/com/vk/sdk/sample/models/VKUser.kt   |  73 ++++++
 .../vk/sdk/sample/requests/VKUsersCommand.kt  |  82 +++++++
 .../sdk/sample/requests/VKWallPostCommand.kt  | 157 +++++++++++++
 .../res/drawable-hdpi/user_placeholder.png    | Bin 0 -> 1979 bytes
 .../res/drawable-mdpi/user_placeholder.png    | Bin 0 -> 1626 bytes
 .../res/drawable-xhdpi/user_placeholder.png   | Bin 0 -> 2331 bytes
 .../res/drawable-xxhdpi/user_placeholder.png  | Bin 0 -> 2352 bytes
 .../sdk/src/main/res/layout/activity_user.xml |  58 +++++
 .../src/main/res/layout/activity_welcome.xml  |  12 +
 .../app/sdk/src/main/res/layout/item_user.xml |  21 ++
 .../res/mipmap-hdpi/ic_launcher_round.png     | Bin 0 -> 7060 bytes
 .../src/main/res/mipmap-hdpi/mp_launcher.png  | Bin 0 -> 5185 bytes
 .../res/mipmap-mdpi/ic_launcher_round.png     | Bin 0 -> 3816 bytes
 .../src/main/res/mipmap-mdpi/mp_launcher.png  | Bin 0 -> 2963 bytes
 .../res/mipmap-xhdpi/ic_launcher_round.png    | Bin 0 -> 10987 bytes
 .../src/main/res/mipmap-xhdpi/mp_launcher.png | Bin 0 -> 7581 bytes
 .../res/mipmap-xxhdpi/ic_launcher_round.png   | Bin 0 -> 21250 bytes
 .../main/res/mipmap-xxhdpi/mp_launcher.png    | Bin 0 -> 13600 bytes
 .../res/mipmap-xxxhdpi/ic_launcher_round.png  | Bin 0 -> 33032 bytes
 .../main/res/mipmap-xxxhdpi/mp_launcher.png   | Bin 0 -> 20877 bytes
 .../sdk/src/main/res/values-es/strings.xml    |   8 +
 .../sdk/src/main/res/values-kk/strings.xml    |   8 +
 .../sdk/src/main/res/values-pt/strings.xml    |   8 +
 .../sdk/src/main/res/values-ru/strings.xml    |   8 +
 .../sdk/src/main/res/values-uk/strings.xml    |   8 +
 samples/app/sdk/src/main/res/values/attrs.xml |   4 +
 .../app/sdk/src/main/res/values/colors.xml    |   6 +
 .../app/sdk/src/main/res/values/strings.xml   |   8 +
 .../app/sdk/src/main/res/values/styles.xml    |  12 +
 .../main/res/xml/network_security_config.xml  |   9 +
 vk-sdk-api/README.md                          |   2 +-
 .../src/main/java/com/vk/sdk/api/Constants.kt |   2 +-
 .../main/java/com/vk/sdk/api/GsonHolder.kt    |  36 ++-
 .../api/account/dto/AccountAccountCounters.kt |   3 +
 .../account/dto/AccountGetCountersFilter.kt   |  22 +-
 .../api/account/dto/AccountGetInfoFields.kt   |  22 +-
 .../account/dto/AccountNameRequestStatus.kt   |  22 +-
 .../vk/sdk/api/account/dto/AccountOffer.kt    |  21 +-
 .../api/account/dto/AccountPushParamsMode.kt  |  22 +-
 .../api/account/dto/AccountPushParamsOnoff.kt |  22 +-
 .../account/dto/AccountPushParamsSettings.kt  |  22 +-
 .../AccountSaveProfileInfoBdateVisibility.kt  |  22 +-
 .../dto/AccountSaveProfileInfoRelation.kt     |  22 +-
 .../account/dto/AccountSaveProfileInfoSex.kt  |  22 +-
 .../sdk/api/addresses/dto/AddressesFields.kt  |  21 +-
 .../com/vk/sdk/api/ads/dto/AdsAccessRole.kt   |  21 +-
 .../vk/sdk/api/ads/dto/AdsAccessRolePublic.kt |  66 ++++++
 .../java/com/vk/sdk/api/ads/dto/AdsAccount.kt |   6 +-
 .../com/vk/sdk/api/ads/dto/AdsAccountType.kt  |  21 +-
 .../com/vk/sdk/api/ads/dto/AdsAdApproved.kt   |  21 +-
 .../com/vk/sdk/api/ads/dto/AdsAdCostType.kt   |  21 +-
 .../com/vk/sdk/api/ads/dto/AdsAdStatus.kt     |  20 +-
 .../vk/sdk/api/ads/dto/AdsCampaignStatus.kt   |  21 +-
 .../com/vk/sdk/api/ads/dto/AdsCampaignType.kt |  21 +-
 .../sdk/api/ads/dto/AdsCheckLinkLinkType.kt   |  22 +-
 .../com/vk/sdk/api/ads/dto/AdsCriteriaSex.kt  |  21 +-
 .../sdk/api/ads/dto/AdsGetCampaignsFields.kt  |  22 +-
 .../api/ads/dto/AdsGetDemographicsIdsType.kt  |  22 +-
 .../api/ads/dto/AdsGetDemographicsPeriod.kt   |  22 +-
 .../api/ads/dto/AdsGetPostsReachIdsType.kt    |  22 +-
 .../api/ads/dto/AdsGetStatisticsIdsType.kt    |  22 +-
 .../sdk/api/ads/dto/AdsGetStatisticsPeriod.kt |  22 +-
 .../ads/dto/AdsGetStatisticsStatsFields.kt    |  22 +-
 .../sdk/api/ads/dto/AdsGetSuggestionsLang.kt  |  22 +-
 .../api/ads/dto/AdsGetSuggestionsSection.kt   |  22 +-
 .../ads/dto/AdsGetTargetingStatsAdFormat.kt   |  22 +-
 .../api/ads/dto/AdsGetUploadURLAdFormat.kt    |  22 +-
 .../vk/sdk/api/ads/dto/AdsLookalikeRequest.kt |  36 ++-
 .../com/vk/sdk/api/ads/dto/AdsObjectType.kt   |  21 +-
 .../vk/sdk/api/ads/dto/AdsStatsSexValue.kt    |  21 +-
 .../ads/dto/AdsTargSuggestionsSchoolsType.kt  |  22 +-
 .../sdk/api/ads/dto/AdsUserSpecification.kt   |   3 +
 .../api/ads/dto/AdsUserSpecificationCutted.kt |  49 ++++
 .../sdk/api/ads/methods/AdsAddOfficeUsers.kt  |   4 +-
 .../api/ads/methods/AdsGetTargetingStats.kt   |   8 +-
 ...WidgetsGetAppImageUploadServerImageType.kt |  22 +-
 .../dto/AppWidgetsGetAppImagesImageType.kt    |  22 +-
 ...dgetsGetGroupImageUploadServerImageType.kt |  22 +-
 .../dto/AppWidgetsGetGroupImagesImageType.kt  |  22 +-
 .../appWidgets/dto/AppWidgetsUpdateType.kt    |  22 +-
 .../api/apps/dto/AppsAppLeaderboardType.kt    |  22 +-
 .../sdk/api/apps/dto/AppsGetCatalogFilter.kt  |  22 +-
 .../api/apps/dto/AppsGetCatalogResponseDto.kt |   6 +-
 .../vk/sdk/api/apps/dto/AppsGetCatalogSort.kt |  21 +-
 .../api/apps/dto/AppsGetFriendsListType.kt    |  22 +-
 .../api/apps/dto/AppsGetLeaderboardType.kt    |  22 +-
 .../vk/sdk/api/apps/dto/AppsGetNameCase.kt    |  21 +-
 .../vk/sdk/api/apps/dto/AppsGetPlatform.kt    |  21 +-
 .../vk/sdk/api/apps/dto/AppsGetScopesType.kt  |  21 +-
 .../java/com/vk/sdk/api/apps/dto/AppsScope.kt |  20 +-
 .../sdk/api/apps/dto/AppsSendRequestType.kt   |  21 +-
 .../api/auth/dto/AuthRestoreResponseDto.kt    |  20 +-
 .../com/vk/sdk/api/base/dto/BaseBoolInt.kt    |  20 +-
 .../vk/sdk/api/base/dto/BaseCommentsInfo.kt   |   6 +-
 .../com/vk/sdk/api/base/dto/BaseLinkButton.kt |   3 +
 .../api/base/dto/BaseLinkButtonActionType.kt  |  40 +++-
 .../sdk/api/base/dto/BaseLinkButtonStyle.kt   |  21 +-
 .../vk/sdk/api/base/dto/BaseLinkProduct.kt    |   9 -
 .../sdk/api/base/dto/BaseLinkProductStatus.kt |  54 ++---
 .../vk/sdk/api/base/dto/BaseOkResponseDto.kt  |  21 +-
 .../vk/sdk/api/base/dto/BasePropertyExists.kt |  21 +-
 .../vk/sdk/api/base/dto/BaseRepostsInfo.kt    |   8 +-
 .../java/com/vk/sdk/api/base/dto/BaseSex.kt   |  20 +-
 .../sdk/api/base/dto/BaseStickerAnimation.kt  |  20 +-
 .../sdk/api/base/dto/BaseUserGroupFields.kt   |  21 +-
 .../vk/sdk/api/board/dto/BoardDefaultOrder.kt |  21 +-
 .../sdk/api/board/dto/BoardGetCommentsSort.kt |  22 +-
 .../sdk/api/board/dto/BoardGetTopicsOrder.kt  |  21 +-
 .../api/board/dto/BoardGetTopicsPreview.kt    |  22 +-
 .../dto/CallbackConfirmationMessage.kt        |   2 +-
 .../dto/CallbackDonutMoneyWithdraw.kt         |  42 ++++
 .../dto/CallbackDonutMoneyWithdrawError.kt    |  39 ++++
 .../dto/CallbackDonutSubscriptionCancelled.kt |  39 ++++
 .../dto/CallbackDonutSubscriptionCreate.kt    |  46 ++++
 .../dto/CallbackDonutSubscriptionExpired.kt   |  39 ++++
 .../CallbackDonutSubscriptionPriceChanged.kt  |  52 +++++
 .../dto/CallbackDonutSubscriptionProlonged.kt |  46 ++++
 .../api/callback/dto/CallbackGroupJoinType.kt |  22 +-
 .../api/callback/dto/CallbackGroupMarket.kt   |  21 +-
 .../callback/dto/CallbackGroupOfficerRole.kt  |  22 +-
 .../api/callback/dto/CallbackLikeAddRemove.kt |  21 +-
 .../api/callback/dto/CallbackMessageType.kt   |  21 +-
 .../sdk/api/docs/dto/DocsDocAttachmentType.kt |  22 +-
 .../dto/DocsGetMessagesUploadServerType.kt    |  22 +-
 .../com/vk/sdk/api/docs/dto/DocsGetType.kt    |  20 +-
 .../com/vk/sdk/api/docs/methods/DocsAdd.kt    |   5 +-
 .../sdk/api/docs/responses/DocsAddResponse.kt |   6 +-
 .../donut/dto/DonutDonatorSubscriptionInfo.kt |  85 +++++++
 .../dto/DonutGetSubscriptionsResponseDto.kt   |  51 ++++
 .../sdk/api/donut/methods/DonutGetFriends.kt  |  67 ++++++
 .../api/donut/methods/DonutGetSubscription.kt |  50 ++++
 .../donut/methods/DonutGetSubscriptions.kt    |  65 ++++++
 .../vk/sdk/api/donut/methods/DonutIsDon.kt    |  49 ++++
 .../responses/DonutGetSubscriptionResponse.kt |  39 ++++
 .../DonutGetSubscriptionsResponse.kt          |  39 ++++
 .../vk/sdk/api/fave/dto/FaveAddTagPosition.kt |  21 +-
 .../vk/sdk/api/fave/dto/FaveBookmarkType.kt   |  21 +-
 .../vk/sdk/api/fave/dto/FaveGetItemType.kt    |  21 +-
 .../vk/sdk/api/fave/dto/FaveGetPagesType.kt   |  21 +-
 .../com/vk/sdk/api/fave/dto/FavePageType.kt   |  21 +-
 .../sdk/api/fave/dto/FaveSetTagsItemType.kt   |  21 +-
 .../api/friends/dto/FriendsAddResponseDto.kt  |  22 +-
 .../friends/dto/FriendsDeleteResponseDto.kt   |  69 +++++-
 .../friends/dto/FriendsFriendStatusStatus.kt  |  22 +-
 .../sdk/api/friends/dto/FriendsGetNameCase.kt |  21 +-
 .../vk/sdk/api/friends/dto/FriendsGetOrder.kt |  29 ++-
 .../api/friends/dto/FriendsGetRequestsSort.kt |  26 ++-
 .../dto/FriendsGetSuggestionsFilter.kt        |  22 +-
 .../dto/FriendsGetSuggestionsNameCase.kt      |  22 +-
 .../api/friends/dto/FriendsSearchNameCase.kt  |  22 +-
 .../api/friends/dto/FriendsUserXtrLists.kt    | 165 ++++++++++++-
 .../api/friends/dto/FriendsUserXtrPhone.kt    | 165 ++++++++++++-
 .../vk/sdk/api/gifts/dto/GiftsGiftPrivacy.kt  |  21 +-
 .../com/vk/sdk/api/gifts/dto/GiftsLayout.kt   |   4 +
 .../dto/GroupsAddAddressWorkInfoStatus.kt     |  22 +-
 .../dto/GroupsAddCallbackServerResponseDto.kt |   2 +-
 .../groups/dto/GroupsAddressWorkInfoStatus.kt |  22 +-
 .../sdk/api/groups/dto/GroupsBanInfoReason.kt |  21 +-
 .../api/groups/dto/GroupsCallbackServer.kt    |  20 +-
 .../sdk/api/groups/dto/GroupsContactsItem.kt  |  12 +-
 .../sdk/api/groups/dto/GroupsCreateSubtype.kt |  21 +-
 .../vk/sdk/api/groups/dto/GroupsCreateType.kt |  21 +-
 .../dto/GroupsEditAddressWorkInfoStatus.kt    |  22 +-
 .../sdk/api/groups/dto/GroupsEditAgeLimits.kt |  21 +-
 .../com/vk/sdk/api/groups/dto/GroupsFields.kt |  71 +++++-
 .../com/vk/sdk/api/groups/dto/GroupsFilter.kt |  21 +-
 .../groups/dto/GroupsGetByIdResponseDto.kt    |  42 ++++
 ...sGetCallbackConfirmationCodeResponseDto.kt |   2 +-
 .../dto/GroupsGetInvitedUsersNameCase.kt      |  22 +-
 .../GroupsGetInvitesExtendedResponseDto.kt    |   2 +-
 .../groups/dto/GroupsGetInvitesResponseDto.kt |   2 +-
 .../api/groups/dto/GroupsGetMembersFilter.kt  |  22 +-
 .../api/groups/dto/GroupsGetMembersSort.kt    |  22 +-
 .../dto/GroupsGetSettingsResponseDto.kt       |  10 +-
 .../com/vk/sdk/api/groups/dto/GroupsGroup.kt  |  64 +++---
 .../sdk/api/groups/dto/GroupsGroupAccess.kt   |  21 +-
 .../api/groups/dto/GroupsGroupAdminLevel.kt   |  22 +-
 .../api/groups/dto/GroupsGroupAgeLimits.kt    |  22 +-
 .../vk/sdk/api/groups/dto/GroupsGroupAudio.kt |  21 +-
 .../vk/sdk/api/groups/dto/GroupsGroupDocs.kt  |  21 +-
 .../vk/sdk/api/groups/dto/GroupsGroupFull.kt  | 134 +++++++----
 .../groups/dto/GroupsGroupFullAgeLimits.kt    |  22 +-
 .../groups/dto/GroupsGroupFullMainSection.kt  |  22 +-
 .../groups/dto/GroupsGroupFullMemberStatus.kt |  22 +-
 .../sdk/api/groups/dto/GroupsGroupIsClosed.kt |  21 +-
 .../groups/dto/GroupsGroupMarketCurrency.kt   |  22 +-
 .../sdk/api/groups/dto/GroupsGroupPhotos.kt   |  21 +-
 .../vk/sdk/api/groups/dto/GroupsGroupRole.kt  |  21 +-
 .../sdk/api/groups/dto/GroupsGroupSubject.kt  |  21 +-
 .../groups/dto/GroupsGroupSuggestedPrivacy.kt |  69 ++++++
 .../vk/sdk/api/groups/dto/GroupsGroupTag.kt   |  20 +-
 .../sdk/api/groups/dto/GroupsGroupTopics.kt   |  21 +-
 .../vk/sdk/api/groups/dto/GroupsGroupType.kt  |  21 +-
 .../vk/sdk/api/groups/dto/GroupsGroupVideo.kt |  21 +-
 .../vk/sdk/api/groups/dto/GroupsGroupWall.kt  |  21 +-
 .../vk/sdk/api/groups/dto/GroupsGroupWiki.kt  |  21 +-
 .../api/groups/dto/GroupsLongPollEvents.kt    |  29 ++-
 .../sdk/api/groups/dto/GroupsMarketState.kt   |  21 +-
 .../groups/dto/GroupsMemberRolePermission.kt  |  22 +-
 .../api/groups/dto/GroupsMemberRoleStatus.kt  |  22 +-
 .../api/groups/dto/GroupsOnlineStatusType.kt  |  22 +-
 .../groups/dto/GroupsOwnerXtrBanInfoType.kt   |  22 +-
 .../sdk/api/groups/dto/GroupsProfileItem.kt   |  46 ++++
 .../sdk/api/groups/dto/GroupsRoleOptions.kt   |  21 +-
 .../vk/sdk/api/groups/dto/GroupsSearchSort.kt |  21 +-
 .../vk/sdk/api/groups/dto/GroupsSearchType.kt |  21 +-
 .../api/groups/dto/GroupsSettingsTwitter.kt   |  20 +-
 .../api/groups/dto/GroupsTagAddTagColor.kt    |  22 +-
 .../vk/sdk/api/groups/dto/GroupsTagBindAct.kt |  21 +-
 .../api/groups/dto/GroupsToggleMarketState.kt |  22 +-
 .../sdk/api/groups/dto/GroupsUserXtrRole.kt   | 165 ++++++++++++-
 .../sdk/api/groups/methods/GroupsGetById.kt   |   4 +-
 .../methods/GroupsSetCallbackSettings.kt      |  47 +++-
 .../methods/GroupsSetLongPollSettings.kt      |  37 ++-
 .../responses/GroupsGetByIdLegacyResponse.kt  |  40 ++++
 .../groups/responses/GroupsGetByIdResponse.kt |   5 +-
 .../sdk/api/likes/dto/LikesGetListFilter.kt   |  21 +-
 .../api/likes/dto/LikesGetListFriendsOnly.kt  |  22 +-
 .../com/vk/sdk/api/likes/dto/LikesType.kt     |  24 +-
 .../vk/sdk/api/likes/methods/LikesGetList.kt  |   2 +-
 .../api/likes/methods/LikesGetListExtended.kt |   2 +-
 .../dto/MarketGetCategoriesNewResponseDto.kt  |  39 ++++
 .../api/market/dto/MarketGetCommentsSort.kt   |  22 +-
 .../api/market/dto/MarketMarketCategory.kt    |   6 +-
 .../market/dto/MarketMarketCategoryNested.kt  |  46 ++++
 .../api/market/dto/MarketMarketCategoryOld.kt |  46 ++++
 .../market/dto/MarketMarketCategoryTree.kt    |  47 ++++
 .../dto/MarketMarketItemAvailability.kt       |  22 +-
 .../api/market/dto/MarketMarketItemFull.kt    |  10 +
 .../com/vk/sdk/api/market/dto/MarketOrder.kt  |   6 +-
 .../com/vk/sdk/api/market/dto/MarketPrice.kt  |   5 +-
 .../market/dto/MarketReportCommentReason.kt   |  22 +-
 .../sdk/api/market/dto/MarketReportReason.kt  |  21 +-
 .../vk/sdk/api/market/dto/MarketSearchRev.kt  |  21 +-
 .../vk/sdk/api/market/dto/MarketSearchSort.kt |  21 +-
 .../sdk/api/market/dto/MarketSearchStatus.kt  |  21 +-
 .../sdk/api/market/methods/MarketEditOrder.kt |  10 +-
 .../api/market/methods/MarketGetCategories.kt |  11 +-
 .../MarketGetCategoriesNewResponse.kt         |  39 ++++
 .../api/messages/dto/MessagesAudioMessage.kt  |   5 +-
 .../api/messages/dto/MessagesConversation.kt  |  25 +-
 .../dto/MessagesConversationPeerType.kt       |  22 +-
 .../sdk/api/messages/dto/MessagesForward.kt   |  53 +++++
 .../dto/MessagesGetConversationsFilter.kt     |  22 +-
 .../MessagesGetHistoryAttachmentsMediaType.kt |  22 +-
 .../api/messages/dto/MessagesGetHistoryRev.kt |  22 +-
 .../messages/dto/MessagesHistoryAttachment.kt |   5 +-
 .../messages/dto/MessagesKeyboardButton.kt    |  20 +-
 .../sdk/api/messages/dto/MessagesOutReadBy.kt |  43 ++++
 .../api/messages/dto/MessagesSendIntent.kt    |  21 +-
 .../dto/MessagesTemplateActionTypeNames.kt    |  22 +-
 .../methods/MessagesAllowMessagesFromGroup.kt |   2 +-
 .../sdk/api/messages/methods/MessagesPin.kt   |   9 +-
 .../methods/MessagesSearchConversations.kt    |   2 +-
 .../sdk/api/messages/methods/MessagesSend.kt  |  15 ++
 .../messages/methods/MessagesSendUserids.kt   |  15 ++
 .../newsfeed/dto/NewsfeedCommentsFilters.kt   |  22 +-
 .../sdk/api/newsfeed/dto/NewsfeedFilters.kt   |  21 +-
 .../newsfeed/dto/NewsfeedGetBannedNameCase.kt |  22 +-
 .../NewsfeedGetSuggestedSourcesResponseDto.kt |  23 +-
 .../newsfeed/dto/NewsfeedIgnoreItemType.kt    |  22 +-
 .../api/newsfeed/dto/NewsfeedItemDigest.kt    |  37 ++-
 .../newsfeed/dto/NewsfeedItemDigestFooter.kt  |  81 +++++++
 .../dto/NewsfeedItemDigestFooterButton.kt     |  76 ++++++
 .../newsfeed/dto/NewsfeedItemDigestHeader.kt  |  81 +++++++
 .../dto/NewsfeedItemWallpostFeedbackType.kt   |  22 +-
 .../newsfeed/dto/NewsfeedItemWallpostType.kt  |  22 +-
 .../newsfeed/dto/NewsfeedNewsfeedItemType.kt  |  38 ++-
 .../newsfeed/dto/NewsfeedUnsubscribeType.kt   |  22 +-
 .../newsfeed/methods/NewsfeedIgnoreItem.kt    |  16 +-
 .../sdk/api/notes/dto/NotesGetCommentsSort.kt |  22 +-
 .../com/vk/sdk/api/notes/dto/NotesGetSort.kt  |  21 +-
 .../dto/NotificationsGetFilters.kt            |  22 +-
 .../dto/NotificationsNotificationParent.kt    |  43 +++-
 .../dto/NotificationsSendMessageError.kt      |  20 +-
 .../api/orders/dto/OrdersChangeStateAction.kt |  22 +-
 .../com/vk/sdk/api/owner/dto/OwnerState.kt    |  20 +-
 .../sdk/api/pages/dto/PagesPrivacySettings.kt |  22 +-
 .../sdk/api/pages/dto/PagesSaveAccessEdit.kt  |  21 +-
 .../sdk/api/pages/dto/PagesSaveAccessView.kt  |  21 +-
 .../api/photos/dto/PhotosGetCommentsSort.kt   |  22 +-
 .../vk/sdk/api/photos/dto/PhotosImageType.kt  |  21 +-
 .../api/photos/dto/PhotosPhotoSizesType.kt    |  48 +++-
 .../photos/dto/PhotosPhotoUploadResponse.kt   |   3 +
 .../photos/dto/PhotosReportCommentReason.kt   |  22 +-
 .../sdk/api/photos/dto/PhotosReportReason.kt  |  21 +-
 .../dto/PhotosTagsSuggestionItemButton.kt     |  35 ++-
 .../vk/sdk/api/photos/methods/PhotosPutTag.kt |   2 +-
 .../vk/sdk/api/polls/dto/PollsBackground.kt   |  20 +-
 .../api/polls/dto/PollsCreateBackgroundId.kt  |  22 +-
 .../api/polls/dto/PollsEditBackgroundId.kt    |  22 +-
 .../sdk/api/polls/dto/PollsGetByIdNameCase.kt |  22 +-
 .../api/polls/dto/PollsGetVotersNameCase.kt   |  22 +-
 .../vk/sdk/api/search/dto/SearchHintType.kt   |  21 +-
 .../vk/sdk/api/stats/dto/StatsGetInterval.kt  |  21 +-
 .../stories/dto/StoriesClickableSticker.kt    |  59 ++++-
 .../vk/sdk/api/stories/dto/StoriesFeedItem.kt |  29 ++-
 .../api/stories/dto/StoriesStoryStatsState.kt |  22 +-
 .../sdk/api/stories/dto/StoriesStoryType.kt   |  21 +-
 .../api/stories/dto/StoriesUploadLinkText.kt  |  22 +-
 .../dto/StreamingGetStatsInterval.kt          |  22 +-
 .../streaming/dto/StreamingGetStatsType.kt    |  22 +-
 .../dto/StreamingSetSettingsMonthlyTier.kt    |  22 +-
 .../com/vk/sdk/api/users/dto/UsersCareer.kt   |   3 +
 .../com/vk/sdk/api/users/dto/UsersFields.kt   |  30 ++-
 .../users/dto/UsersGetFollowersNameCase.kt    |  22 +-
 .../vk/sdk/api/users/dto/UsersGetNameCase.kt  |  21 +-
 .../vk/sdk/api/users/dto/UsersOnlineInfo.kt   |  20 +-
 .../com/vk/sdk/api/users/dto/UsersRelative.kt |  20 +-
 .../vk/sdk/api/users/dto/UsersReportType.kt   |  21 +-
 .../com/vk/sdk/api/users/dto/UsersSchool.kt   |   5 +-
 .../vk/sdk/api/users/dto/UsersSearchSex.kt    |  21 +-
 .../vk/sdk/api/users/dto/UsersSearchSort.kt   |  21 +-
 .../vk/sdk/api/users/dto/UsersSearchStatus.kt |  21 +-
 .../vk/sdk/api/users/dto/UsersUniversity.kt   |   5 +-
 .../vk/sdk/api/users/dto/UsersUserCounters.kt |  29 ++-
 .../com/vk/sdk/api/users/dto/UsersUserFull.kt | 163 ++++++++++++-
 .../vk/sdk/api/users/dto/UsersUserRelation.kt |  21 +-
 .../com/vk/sdk/api/users/dto/UsersUserType.kt |  21 +-
 .../sdk/api/users/dto/UsersUserXtrCounters.kt | 166 +++++++++++++-
 .../api/utils/dto/UtilsDomainResolvedType.kt  |  28 ++-
 .../utils/dto/UtilsGetLinkStatsInterval.kt    |  22 +-
 .../api/utils/dto/UtilsGetLinkStatsSource.kt  |  22 +-
 .../api/utils/dto/UtilsLinkCheckedStatus.kt   |  22 +-
 .../sdk/api/video/dto/VideoAddAlbumPrivacy.kt |  22 +-
 .../api/video/dto/VideoEditAlbumPrivacy.kt    |  22 +-
 .../sdk/api/video/dto/VideoGetCommentsSort.kt |  22 +-
 .../com/vk/sdk/api/video/dto/VideoLiveInfo.kt |  42 ++++
 .../api/video/dto/VideoReportCommentReason.kt |  22 +-
 .../vk/sdk/api/video/dto/VideoReportReason.kt |  21 +-
 .../api/video/dto/VideoRestrictionButton.kt   |  20 +-
 .../sdk/api/video/dto/VideoSearchFilters.kt   |  21 +-
 .../vk/sdk/api/video/dto/VideoSearchSort.kt   |  21 +-
 .../com/vk/sdk/api/video/dto/VideoVideo.kt    |  43 +++-
 .../vk/sdk/api/video/dto/VideoVideoFull.kt    |  43 +++-
 .../api/wall/dto/WallCommentAttachmentType.kt |  22 +-
 .../api/wall/dto/WallGetByIdResponseDto.kt    |  39 ++++
 .../sdk/api/wall/dto/WallGetCommentsSort.kt   |  21 +-
 .../com/vk/sdk/api/wall/dto/WallGetFilter.kt  |  21 +-
 .../vk/sdk/api/wall/dto/WallPostSourceType.kt |  21 +-
 .../com/vk/sdk/api/wall/dto/WallPostType.kt   |  21 +-
 .../api/wall/dto/WallReportCommentReason.kt   |  22 +-
 .../sdk/api/wall/dto/WallReportPostReason.kt  |  22 +-
 .../sdk/api/wall/dto/WallRepostResponseDto.kt |   8 +-
 .../vk/sdk/api/wall/dto/WallWallComment.kt    |   3 +
 .../sdk/api/wall/dto/WallWallCommentDonut.kt  |  42 ++++
 .../dto/WallWallCommentDonutPlaceholder.kt    |  39 ++++
 .../wall/dto/WallWallpostAttachmentType.kt    |  22 +-
 .../api/wall/dto/WallWallpostCommentsDonut.kt |  38 +++
 .../WallWallpostCommentsDonutPlaceholder.kt   |  39 ++++
 .../vk/sdk/api/wall/dto/WallWallpostDonut.kt  |  89 +++++++
 .../wall/dto/WallWallpostDonutPlaceholder.kt  |  39 ++++
 .../vk/sdk/api/wall/dto/WallWallpostFull.kt   |   3 +
 .../com/vk/sdk/api/wall/methods/WallEdit.kt   |   5 +
 .../vk/sdk/api/wall/methods/WallGetById.kt    |   4 +-
 .../com/vk/sdk/api/wall/methods/WallPost.kt   |   5 +
 .../responses/WallGetByIdLegacyResponse.kt    |  40 ++++
 .../api/wall/responses/WallGetByIdResponse.kt |   5 +-
 .../widgets/dto/WidgetsCommentMediaType.kt    |  22 +-
 .../src/main/java/com/vk/api/sdk/VK.kt        |  49 ++--
 .../main/java/com/vk/api/sdk/VKApiConfig.kt   |   8 +-
 .../main/java/com/vk/api/sdk/VKApiManager.kt  |  11 +-
 .../java/com/vk/api/sdk/VKHttpPostCall.kt     |   6 +
 .../main/java/com/vk/api/sdk/VKMethodCall.kt  |  10 +
 .../com/vk/api/sdk/chain/HttpPostChainCall.kt |   7 +-
 .../api/sdk/internal/QueryStringGenerator.kt  |   1 -
 .../vk/api/sdk/okhttp/LoggingInterceptor.kt   |   1 -
 .../com/vk/api/sdk/okhttp/OkHttpExecutor.kt   |  13 +-
 .../com/vk/api/sdk/okhttp/OkHttpPostCall.kt   |  10 +-
 .../vk/api/sdk/utils/ThreadLocalDelegate.kt   |   6 +-
 379 files changed, 8880 insertions(+), 971 deletions(-)
 create mode 100644 samples/app/sdk/src/.gitignore
 create mode 100644 samples/app/sdk/src/build.gradle
 create mode 100644 samples/app/sdk/src/main/AndroidManifest.xml
 create mode 100644 samples/app/sdk/src/main/java/com/vk/sdk/sample/PathUtils.kt
 create mode 100644 samples/app/sdk/src/main/java/com/vk/sdk/sample/SampleApplication.kt
 create mode 100644 samples/app/sdk/src/main/java/com/vk/sdk/sample/UserActivity.kt
 create mode 100644 samples/app/sdk/src/main/java/com/vk/sdk/sample/WelcomeActivity.kt
 create mode 100644 samples/app/sdk/src/main/java/com/vk/sdk/sample/models/UploadModels.kt
 create mode 100644 samples/app/sdk/src/main/java/com/vk/sdk/sample/models/VKUser.kt
 create mode 100644 samples/app/sdk/src/main/java/com/vk/sdk/sample/requests/VKUsersCommand.kt
 create mode 100644 samples/app/sdk/src/main/java/com/vk/sdk/sample/requests/VKWallPostCommand.kt
 create mode 100644 samples/app/sdk/src/main/res/drawable-hdpi/user_placeholder.png
 create mode 100644 samples/app/sdk/src/main/res/drawable-mdpi/user_placeholder.png
 create mode 100644 samples/app/sdk/src/main/res/drawable-xhdpi/user_placeholder.png
 create mode 100644 samples/app/sdk/src/main/res/drawable-xxhdpi/user_placeholder.png
 create mode 100644 samples/app/sdk/src/main/res/layout/activity_user.xml
 create mode 100644 samples/app/sdk/src/main/res/layout/activity_welcome.xml
 create mode 100644 samples/app/sdk/src/main/res/layout/item_user.xml
 create mode 100644 samples/app/sdk/src/main/res/mipmap-hdpi/ic_launcher_round.png
 create mode 100644 samples/app/sdk/src/main/res/mipmap-hdpi/mp_launcher.png
 create mode 100644 samples/app/sdk/src/main/res/mipmap-mdpi/ic_launcher_round.png
 create mode 100644 samples/app/sdk/src/main/res/mipmap-mdpi/mp_launcher.png
 create mode 100644 samples/app/sdk/src/main/res/mipmap-xhdpi/ic_launcher_round.png
 create mode 100644 samples/app/sdk/src/main/res/mipmap-xhdpi/mp_launcher.png
 create mode 100644 samples/app/sdk/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
 create mode 100644 samples/app/sdk/src/main/res/mipmap-xxhdpi/mp_launcher.png
 create mode 100644 samples/app/sdk/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
 create mode 100644 samples/app/sdk/src/main/res/mipmap-xxxhdpi/mp_launcher.png
 create mode 100644 samples/app/sdk/src/main/res/values-es/strings.xml
 create mode 100644 samples/app/sdk/src/main/res/values-kk/strings.xml
 create mode 100644 samples/app/sdk/src/main/res/values-pt/strings.xml
 create mode 100644 samples/app/sdk/src/main/res/values-ru/strings.xml
 create mode 100644 samples/app/sdk/src/main/res/values-uk/strings.xml
 create mode 100644 samples/app/sdk/src/main/res/values/attrs.xml
 create mode 100644 samples/app/sdk/src/main/res/values/colors.xml
 create mode 100644 samples/app/sdk/src/main/res/values/strings.xml
 create mode 100644 samples/app/sdk/src/main/res/values/styles.xml
 create mode 100644 samples/app/sdk/src/main/res/xml/network_security_config.xml
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAccessRolePublic.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsUserSpecificationCutted.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutMoneyWithdraw.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutMoneyWithdrawError.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutSubscriptionCancelled.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutSubscriptionCreate.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutSubscriptionExpired.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutSubscriptionPriceChanged.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutSubscriptionProlonged.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/donut/dto/DonutDonatorSubscriptionInfo.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/donut/dto/DonutGetSubscriptionsResponseDto.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/donut/methods/DonutGetFriends.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/donut/methods/DonutGetSubscription.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/donut/methods/DonutGetSubscriptions.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/donut/methods/DonutIsDon.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/donut/responses/DonutGetSubscriptionResponse.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/donut/responses/DonutGetSubscriptionsResponse.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetByIdResponseDto.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupSuggestedPrivacy.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsProfileItem.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/groups/responses/GroupsGetByIdLegacyResponse.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketGetCategoriesNewResponseDto.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketCategoryNested.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketCategoryOld.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketCategoryTree.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/market/responses/MarketGetCategoriesNewResponse.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesForward.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesOutReadBy.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemDigestFooter.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemDigestFooterButton.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemDigestHeader.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoLiveInfo.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallGetByIdResponseDto.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallCommentDonut.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallCommentDonutPlaceholder.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostCommentsDonut.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostCommentsDonutPlaceholder.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostDonut.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostDonutPlaceholder.kt
 create mode 100644 vk-sdk-api/src/main/java/com/vk/sdk/api/wall/responses/WallGetByIdLegacyResponse.kt

diff --git a/dependencies.gradle b/dependencies.gradle
index c56c66a0bd..993a5d760f 100644
--- a/dependencies.gradle
+++ b/dependencies.gradle
@@ -23,8 +23,8 @@ SOFTWARE.
 */
 
 ext.sdkVersions = [
-        code                            : '19',
-        name                            : '2.4.0',
+        code                            : '21',
+        name                            : '2.6.0',
 
         minSdk                          : 21,
         targetSdk                       : 29,
diff --git a/samples/app/sdk/src/.gitignore b/samples/app/sdk/src/.gitignore
new file mode 100644
index 0000000000..796b96d1c4
--- /dev/null
+++ b/samples/app/sdk/src/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/samples/app/sdk/src/build.gradle b/samples/app/sdk/src/build.gradle
new file mode 100644
index 0000000000..65f75acc52
--- /dev/null
+++ b/samples/app/sdk/src/build.gradle
@@ -0,0 +1,66 @@
+/*******************************************************************************
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ ******************************************************************************/
+
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply from: '../../dependencies.gradle'
+
+android {
+    compileSdkVersion "$sdkVersions.compileSdk".toInteger()
+    buildToolsVersion "$sdkVersions.buildTools"
+
+    defaultConfig {
+        applicationId = "com.vk.sdk.sample"
+        minSdkVersion "$sdkVersions.minSdk"
+        targetSdkVersion "$sdkVersions.targetSdk"
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    lintOptions {
+        abortOnError true
+        checkReleaseBuilds true
+    }
+
+    dexOptions {
+        preDexLibraries true
+        javaMaxHeapSize "5g"
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: '*.jar')
+    implementation sdkLibraries.kotlin
+    implementation sdkLibrariesSupport.recyclerView
+    implementation sdkLibrariesSupport.appCompat
+    implementation (sdkLibraries.picasso) { transitive = false }
+    implementation sdkLibraries.okHttp
+
+    implementation project(':libapi-sdk-core')
+    implementation project(':libapi-sdk-api')
+    //implementation 'com.vk:androidsdk:2.0.0'
+}
diff --git a/samples/app/sdk/src/main/AndroidManifest.xml b/samples/app/sdk/src/main/AndroidManifest.xml
new file mode 100644
index 0000000000..1846374115
--- /dev/null
+++ b/samples/app/sdk/src/main/AndroidManifest.xml
@@ -0,0 +1,56 @@
+<!-- *******************************************************************************
+# The MIT License (MIT)
+#
+# Copyright (c) 2019 vk.com
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+# ****************************************************************************** -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.vk.sdk.sample">
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
+
+    <application
+        android:name=".SampleApplication"
+        android:allowBackup="false"
+        android:label="@string/app_name"
+        android:icon="@mipmap/ic_launcher_round"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:networkSecurityConfig="@xml/network_security_config"
+        android:theme="@style/AppTheme" >
+        <activity
+            android:name=".WelcomeActivity"
+            android:configChanges="keyboard|keyboardHidden|orientation|screenSize"
+            android:label="@string/app_name"
+            android:launchMode="singleInstance"
+            android:windowSoftInputMode="adjustResize">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+
+                <category android:name="android.intent.category.LAUNCHER"/>
+                <category android:name="android.intent.category.MULTIWINDOW_LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <activity
+            android:name=".UserActivity"
+            android:configChanges="keyboard|keyboardHidden|orientation|screenSize"
+            android:label="@string/app_name" />
+    </application>
+</manifest>
diff --git a/samples/app/sdk/src/main/java/com/vk/sdk/sample/PathUtils.kt b/samples/app/sdk/src/main/java/com/vk/sdk/sample/PathUtils.kt
new file mode 100644
index 0000000000..8233032c4a
--- /dev/null
+++ b/samples/app/sdk/src/main/java/com/vk/sdk/sample/PathUtils.kt
@@ -0,0 +1,43 @@
+/*******************************************************************************
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ ******************************************************************************/
+
+package com.vk.sdk.sample
+
+import android.content.Context
+import android.net.Uri
+import android.provider.MediaStore
+
+object PathUtils {
+    fun getPath(context: Context, uri: Uri): String {
+        if (uri.scheme == "file") {
+            if (uri.path != null) return uri.path!!
+            return ""
+        }
+        val proj = arrayOf(MediaStore.Images.Media.DATA)
+        val cursor = context.contentResolver.query(uri, proj, null, null, null)
+        val columnIndex = cursor!!.getColumnIndexOrThrow(MediaStore.Images.Media.DATA)
+        cursor.moveToFirst()
+        return "file://" + cursor.getString(columnIndex)
+    }
+}
\ No newline at end of file
diff --git a/samples/app/sdk/src/main/java/com/vk/sdk/sample/SampleApplication.kt b/samples/app/sdk/src/main/java/com/vk/sdk/sample/SampleApplication.kt
new file mode 100644
index 0000000000..61301210ff
--- /dev/null
+++ b/samples/app/sdk/src/main/java/com/vk/sdk/sample/SampleApplication.kt
@@ -0,0 +1,42 @@
+/*******************************************************************************
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ ******************************************************************************/
+
+package com.vk.sdk.sample
+
+import android.app.Application
+import com.vk.api.sdk.VK
+import com.vk.api.sdk.VKTokenExpiredHandler
+
+class SampleApplication: Application() {
+    override fun onCreate() {
+        super.onCreate()
+        VK.addTokenExpiredHandler(tokenTracker)
+    }
+
+    private val tokenTracker = object: VKTokenExpiredHandler {
+        override fun onTokenExpired() {
+            WelcomeActivity.startFrom(this@SampleApplication)
+        }
+    }
+}
\ No newline at end of file
diff --git a/samples/app/sdk/src/main/java/com/vk/sdk/sample/UserActivity.kt b/samples/app/sdk/src/main/java/com/vk/sdk/sample/UserActivity.kt
new file mode 100644
index 0000000000..d132bb57d6
--- /dev/null
+++ b/samples/app/sdk/src/main/java/com/vk/sdk/sample/UserActivity.kt
@@ -0,0 +1,217 @@
+/*******************************************************************************
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ ******************************************************************************/
+
+package com.vk.sdk.sample
+
+import android.app.Activity
+import android.content.Context
+import android.content.Intent
+import android.net.Uri
+import android.os.Bundle
+import android.text.TextUtils
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.*
+import androidx.recyclerview.widget.RecyclerView
+import com.squareup.picasso.Picasso
+import com.vk.api.sdk.VK
+import com.vk.api.sdk.VKApiCallback
+import com.vk.sdk.api.friends.dto.FriendsGetFieldsResponseDto
+import com.vk.sdk.api.friends.methods.FriendsGetFields
+import com.vk.sdk.api.users.dto.UsersFields
+import com.vk.sdk.sample.models.VKUser
+import com.vk.sdk.sample.requests.VKUsersCommand
+import com.vk.sdk.sample.requests.VKWallPostCommand
+
+class UserActivity: Activity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_user)
+
+        val logoutBtn = findViewById<Button>(R.id.logoutBtn)
+        logoutBtn.setOnClickListener {
+            VK.logout()
+            WelcomeActivity.startFrom(this)
+            finish()
+        }
+        val shareBtn = findViewById<Button>(R.id.shareBtn)
+        shareBtn.setOnClickListener {
+            requestPhoto()
+        }
+
+        requestUsers()
+
+        requestFriends()
+    }
+
+    private fun requestUsers() {
+        VK.execute(VKUsersCommand(), object: VKApiCallback<List<VKUser>> {
+            override fun success(result: List<VKUser>) {
+                if (!isFinishing && !result.isEmpty()) {
+                    val nameTV = findViewById<TextView>(R.id.nameTV)
+                    val user = result[0]
+                    nameTV.text = "${user.firstName} ${user.lastName}"
+                    nameTV.setOnClickListener(createOnClickListener(user.id))
+
+                    val avatarIV = findViewById<ImageView>(R.id.avatarIV)
+                    if (!TextUtils.isEmpty(user.photo)) {
+                        Picasso.get()
+                                .load(user.photo)
+                                .error(R.drawable.user_placeholder)
+                                .into(avatarIV)
+                    } else {
+                        avatarIV.setImageResource(R.drawable.user_placeholder)
+                    }
+                    avatarIV.setOnClickListener(createOnClickListener(user.id))
+                }
+            }
+            override fun fail(error: Exception) {
+                Log.e(TAG, error.toString())
+            }
+        })
+    }
+
+    private fun requestFriends() {
+        val fields = listOf(UsersFields.PHOTO_200)
+        VK.execute(FriendsGetFields(fields = fields), object: VKApiCallback<FriendsGetFieldsResponseDto> {
+            override fun success(result: FriendsGetFieldsResponseDto) {
+                val friends = result.items
+                if (!isFinishing && friends.isNotEmpty()) {
+                    val vkUsers = friends.map { friend ->
+                        VKUser(
+                            id = friend.id ?: 0,
+                            firstName = friend.firstName ?: "",
+                            lastName = friend.lastName ?: "",
+                            photo = friend.photo200 ?: "",
+                            deactivated = friend.deactivated != null
+                        )
+                    }
+                    showFriends(vkUsers)
+                }
+            }
+            override fun fail(error: Exception) {
+                Log.e(TAG, error.toString())
+            }
+        })
+    }
+
+    private fun showFriends(friends: List<VKUser>) {
+        val recyclerView = findViewById<RecyclerView>(R.id.friendsRV)
+        recyclerView.layoutManager = androidx.recyclerview.widget.LinearLayoutManager(this, RecyclerView.HORIZONTAL, false)
+
+        val adapter = FriendsAdapter()
+        adapter.setData(friends)
+
+        recyclerView.adapter = adapter
+    }
+
+    private fun requestPhoto() {
+        val intent = Intent(Intent.ACTION_PICK)
+        intent.type = "image/*"
+        startActivityForResult(intent, IMAGE_REQ_CODE)
+    }
+
+    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+        super.onActivityResult(requestCode, resultCode, data)
+        if (requestCode == IMAGE_REQ_CODE) {
+            if (resultCode == RESULT_OK && data != null && data.data != null) {
+                sharePost(Uri.parse(PathUtils.getPath(this, data.data!!)))
+            } else {
+                sharePost()
+            }
+        }
+    }
+
+    private fun sharePost(uri: Uri? = null) {
+        val messageField = findViewById<EditText>(R.id.messageET)
+
+        val photos = ArrayList<Uri>()
+        uri?.let {
+            photos.add(it)
+        }
+        VK.execute(VKWallPostCommand(messageField.text.toString(), photos), object: VKApiCallback<Int> {
+            override fun success(result: Int) {
+                // TODO Use ToastUtils
+                Toast.makeText(this@UserActivity, R.string.wall_ok, Toast.LENGTH_SHORT).show()
+            }
+
+            override fun fail(error: Exception) {
+                Log.e(TAG, error.toString())
+            }
+        })
+    }
+
+    private fun createOnClickListener(userId: Int) = View.OnClickListener {
+        VK.urlResolver.open(it.context, "https://vk.com/id$userId")
+    }
+
+    inner class FriendsAdapter: RecyclerView.Adapter<RecyclerView.ViewHolder>() {
+        private val friends: MutableList<VKUser> = arrayListOf()
+
+        override fun onCreateViewHolder(parent: ViewGroup, viewType: Int)
+                = UserHolder(parent.context)
+
+        override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
+            (holder as UserHolder).bind(friends[position])
+        }
+
+        fun setData(friends: List<VKUser>) {
+            this.friends.clear()
+            this.friends.addAll(friends)
+            notifyDataSetChanged()
+        }
+
+        override fun getItemCount() = friends.size
+    }
+
+    inner class UserHolder(context: Context?): RecyclerView.ViewHolder(
+            LayoutInflater.from(context).inflate(R.layout.item_user, null)) {
+        private val avatarIV: ImageView = itemView.findViewById(R.id.avatarIV)
+        private val nameTV: TextView = itemView.findViewById(R.id.nameTV)
+
+        fun bind(user: VKUser) {
+            nameTV.text = "${user.firstName} ${user.lastName}"
+            nameTV.setOnClickListener(createOnClickListener(user.id))
+            if (!TextUtils.isEmpty(user.photo)) {
+                Picasso.get().load(user.photo).error(R.drawable.user_placeholder).into(avatarIV)
+            } else {
+                avatarIV.setImageResource(R.drawable.user_placeholder)
+            }
+            avatarIV.setOnClickListener(createOnClickListener(user.id))
+        }
+    }
+
+    companion object {
+        private const val TAG = "UserActivity"
+
+        private const val IMAGE_REQ_CODE = 101
+
+        fun startFrom(context: Context) {
+            val intent = Intent(context, UserActivity::class.java)
+            context.startActivity(intent)
+        }
+    }
+}
\ No newline at end of file
diff --git a/samples/app/sdk/src/main/java/com/vk/sdk/sample/WelcomeActivity.kt b/samples/app/sdk/src/main/java/com/vk/sdk/sample/WelcomeActivity.kt
new file mode 100644
index 0000000000..37f246bdf3
--- /dev/null
+++ b/samples/app/sdk/src/main/java/com/vk/sdk/sample/WelcomeActivity.kt
@@ -0,0 +1,76 @@
+/*******************************************************************************
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ ******************************************************************************/
+
+package com.vk.sdk.sample
+
+import android.app.Activity
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import android.widget.Button
+import com.vk.api.sdk.VK
+import com.vk.api.sdk.auth.VKAccessToken
+import com.vk.api.sdk.auth.VKAuthCallback
+import com.vk.api.sdk.auth.VKScope
+
+class WelcomeActivity: Activity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        if (VK.isLoggedIn()) {
+            UserActivity.startFrom(this)
+            finish()
+            return
+        }
+        setContentView(R.layout.activity_welcome)
+
+        val loginBtn = findViewById<Button>(R.id.loginBtn)
+        loginBtn.setOnClickListener {
+            VK.login(this, arrayListOf(VKScope.WALL, VKScope.PHOTOS))
+        }
+    }
+
+    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+        val callback = object: VKAuthCallback {
+            override fun onLogin(token: VKAccessToken) {
+                UserActivity.startFrom(this@WelcomeActivity)
+                finish()
+            }
+
+            override fun onLoginFailed(errorCode: Int) {
+            }
+        }
+        if (!VK.onActivityResult(requestCode, resultCode, data, callback)) {
+            super.onActivityResult(requestCode, resultCode, data)
+        }
+    }
+
+    companion object {
+        fun startFrom(context: Context) {
+            val intent = Intent(context, WelcomeActivity::class.java)
+            intent.flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TOP
+            context.startActivity(intent)
+        }
+    }
+}
\ No newline at end of file
diff --git a/samples/app/sdk/src/main/java/com/vk/sdk/sample/models/UploadModels.kt b/samples/app/sdk/src/main/java/com/vk/sdk/sample/models/UploadModels.kt
new file mode 100644
index 0000000000..fd74849efc
--- /dev/null
+++ b/samples/app/sdk/src/main/java/com/vk/sdk/sample/models/UploadModels.kt
@@ -0,0 +1,36 @@
+/*******************************************************************************
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ ******************************************************************************/
+
+package com.vk.sdk.sample.models
+
+class VKSaveInfo(val id: Int,
+               val albumId: Int,
+               val ownerId: Int) {
+    fun getAttachment() = "photo${ownerId}_$id"
+}
+
+class VKFileUploadInfo(val server: String, val photo: String, val hash: String)
+
+class VKServerUploadInfo(val uploadUrl: String, val albumId: Int, val userId: Int)
+
diff --git a/samples/app/sdk/src/main/java/com/vk/sdk/sample/models/VKUser.kt b/samples/app/sdk/src/main/java/com/vk/sdk/sample/models/VKUser.kt
new file mode 100644
index 0000000000..7b5987e735
--- /dev/null
+++ b/samples/app/sdk/src/main/java/com/vk/sdk/sample/models/VKUser.kt
@@ -0,0 +1,73 @@
+/*******************************************************************************
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ ******************************************************************************/
+
+package com.vk.sdk.sample.models
+
+import android.os.Parcel
+import android.os.Parcelable
+import org.json.JSONObject
+
+data class VKUser(
+        val id: Int = 0,
+        val firstName: String = "",
+        val lastName: String = "",
+        val photo: String = "",
+        val deactivated: Boolean = false) : Parcelable {
+
+    constructor(parcel: Parcel) : this(
+            parcel.readInt(),
+            parcel.readString()!!,
+            parcel.readString()!!,
+            parcel.readString()!!,
+            parcel.readByte() != 0.toByte())
+
+    override fun writeToParcel(parcel: Parcel, flags: Int) {
+        parcel.writeInt(id)
+        parcel.writeString(firstName)
+        parcel.writeString(lastName)
+        parcel.writeString(photo)
+        parcel.writeByte(if (deactivated) 1 else 0)
+    }
+
+    override fun describeContents(): Int {
+        return 0
+    }
+
+    companion object CREATOR : Parcelable.Creator<VKUser> {
+        override fun createFromParcel(parcel: Parcel): VKUser {
+            return VKUser(parcel)
+        }
+
+        override fun newArray(size: Int): Array<VKUser?> {
+            return arrayOfNulls(size)
+        }
+
+        fun parse(json: JSONObject)
+                = VKUser(id = json.optInt("id", 0),
+                firstName = json.optString("first_name", ""),
+                lastName = json.optString("last_name", ""),
+                photo = json.optString("photo_200", ""),
+                deactivated = json.optBoolean("deactivated", false))
+    }
+}
\ No newline at end of file
diff --git a/samples/app/sdk/src/main/java/com/vk/sdk/sample/requests/VKUsersCommand.kt b/samples/app/sdk/src/main/java/com/vk/sdk/sample/requests/VKUsersCommand.kt
new file mode 100644
index 0000000000..0b1b0e22ed
--- /dev/null
+++ b/samples/app/sdk/src/main/java/com/vk/sdk/sample/requests/VKUsersCommand.kt
@@ -0,0 +1,82 @@
+/*******************************************************************************
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ ******************************************************************************/
+
+package com.vk.sdk.sample.requests
+
+import com.vk.api.sdk.VKApiManager
+import com.vk.api.sdk.VKApiResponseParser
+import com.vk.api.sdk.VKMethodCall
+import com.vk.api.sdk.exceptions.VKApiIllegalResponseException
+import com.vk.api.sdk.internal.ApiCommand
+import com.vk.sdk.sample.models.VKUser
+import org.json.JSONException
+import org.json.JSONObject
+
+class VKUsersCommand(private val uids: IntArray = intArrayOf()): ApiCommand<List<VKUser>>() {
+    override fun onExecute(manager: VKApiManager): List<VKUser> {
+
+        if (uids.isEmpty()) {
+            // if no uids, send user's data
+            val call = VKMethodCall.Builder()
+                    .method("users.get")
+                    .args("fields", "photo_200")
+                    .version(manager.config.version)
+                    .build()
+            return manager.execute(call, ResponseApiParser())
+        } else {
+            val result = ArrayList<VKUser>()
+            val chunks = uids.toList().chunked(CHUNK_LIMIT)
+            for (chunk in chunks) {
+                val call = VKMethodCall.Builder()
+                        .method("users.get")
+                        .args("user_ids", chunk.joinToString(","))
+                        .args("fields", "photo_200")
+                        .version(manager.config.version)
+                        .build()
+                result.addAll(manager.execute(call, ResponseApiParser()))
+            }
+            return result
+        }
+    }
+
+    companion object {
+        const val CHUNK_LIMIT = 900
+    }
+
+    private class ResponseApiParser : VKApiResponseParser<List<VKUser>> {
+        override fun parse(response: String): List<VKUser> {
+            try {
+                val ja = JSONObject(response).getJSONArray("response")
+                val r = ArrayList<VKUser>(ja.length())
+                for (i in 0 until ja.length()) {
+                    val user = VKUser.parse(ja.getJSONObject(i))
+                    r.add(user)
+                }
+                return r
+            } catch (ex: JSONException) {
+                throw VKApiIllegalResponseException(ex)
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/samples/app/sdk/src/main/java/com/vk/sdk/sample/requests/VKWallPostCommand.kt b/samples/app/sdk/src/main/java/com/vk/sdk/sample/requests/VKWallPostCommand.kt
new file mode 100644
index 0000000000..381bdc4b0a
--- /dev/null
+++ b/samples/app/sdk/src/main/java/com/vk/sdk/sample/requests/VKWallPostCommand.kt
@@ -0,0 +1,157 @@
+/*******************************************************************************
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ ******************************************************************************/
+
+package com.vk.sdk.sample.requests
+
+import android.net.Uri
+import com.vk.api.sdk.VKApiManager
+import com.vk.api.sdk.VKApiResponseParser
+import com.vk.api.sdk.VKHttpPostCall
+import com.vk.api.sdk.VKMethodCall
+import com.vk.api.sdk.exceptions.VKApiIllegalResponseException
+import com.vk.api.sdk.internal.ApiCommand
+import com.vk.sdk.sample.models.VKFileUploadInfo
+import com.vk.sdk.sample.models.VKSaveInfo
+import com.vk.sdk.sample.models.VKServerUploadInfo
+import org.json.JSONException
+import org.json.JSONObject
+import java.util.concurrent.TimeUnit
+
+class VKWallPostCommand(private val message: String? = null,
+                        private val photos: List<Uri> = listOf(),
+                        private val ownerId: Int = 0,
+                        private val friendsOnly: Boolean = false,
+                        private val fromGroup: Boolean = false): ApiCommand<Int>() {
+    override fun onExecute(manager: VKApiManager): Int {
+        val callBuilder = VKMethodCall.Builder()
+                .method("wall.post")
+                .args("friends_only", if (friendsOnly) 1 else 0)
+                .args("from_group", if (fromGroup) 1 else 0)
+                .version(manager.config.version)
+        message?.let {
+            callBuilder.args("message", it)
+        }
+
+        if (ownerId != 0) {
+            callBuilder.args("owner_id", ownerId)
+        }
+
+        if (photos.isNotEmpty()) {
+            val uploadInfo = getServerUploadInfo(manager)
+            val attachments = photos.map { uploadPhoto(it, uploadInfo, manager) }
+
+            callBuilder.args("attachments", attachments.joinToString(","))
+        }
+
+        return manager.execute(callBuilder.build(), ResponseApiParser())
+    }
+
+    private fun getServerUploadInfo(manager: VKApiManager): VKServerUploadInfo {
+        val uploadInfoCall = VKMethodCall.Builder()
+                .method("photos.getWallUploadServer")
+                .version(manager.config.version)
+                .build()
+        return manager.execute(uploadInfoCall, ServerUploadInfoParser())
+    }
+
+    private fun uploadPhoto(uri: Uri, serverUploadInfo: VKServerUploadInfo, manager: VKApiManager): String {
+        val fileUploadCall = VKHttpPostCall.Builder()
+                .url(serverUploadInfo.uploadUrl)
+                .args("photo", uri, "image.jpg")
+                .timeout(TimeUnit.MINUTES.toMillis(5))
+                .retryCount(RETRY_COUNT)
+                .build()
+        val fileUploadInfo = manager.execute(fileUploadCall, null, FileUploadInfoParser())
+
+        val saveCall = VKMethodCall.Builder()
+                .method("photos.saveWallPhoto")
+                .args("server", fileUploadInfo.server)
+                .args("photo", fileUploadInfo.photo)
+                .args("hash", fileUploadInfo.hash)
+                .version(manager.config.version)
+                .build()
+
+        val saveInfo = manager.execute(saveCall, SaveInfoParser())
+
+        return saveInfo.getAttachment()
+    }
+
+    companion object {
+        const val RETRY_COUNT = 3
+    }
+
+    private class ResponseApiParser : VKApiResponseParser<Int> {
+        override fun parse(response: String): Int {
+            try {
+                return JSONObject(response).getJSONObject("response").getInt("post_id")
+            } catch (ex: JSONException) {
+                throw VKApiIllegalResponseException(ex)
+            }
+        }
+    }
+
+    private class ServerUploadInfoParser : VKApiResponseParser<VKServerUploadInfo> {
+        override fun parse(response: String): VKServerUploadInfo{
+            try {
+                val joResponse = JSONObject(response).getJSONObject("response")
+                return VKServerUploadInfo(
+                        uploadUrl = joResponse.getString("upload_url"),
+                        albumId = joResponse.getInt("album_id"),
+                        userId = joResponse.getInt("user_id"))
+            } catch (ex: JSONException) {
+                throw VKApiIllegalResponseException(ex)
+            }
+        }
+    }
+
+    private class FileUploadInfoParser: VKApiResponseParser<VKFileUploadInfo> {
+        override fun parse(response: String): VKFileUploadInfo{
+            try {
+                val joResponse = JSONObject(response)
+                return VKFileUploadInfo(
+                        server = joResponse.getString("server"),
+                        photo = joResponse.getString("photo"),
+                        hash = joResponse.getString("hash")
+                )
+            } catch (ex: JSONException) {
+                throw VKApiIllegalResponseException(ex)
+            }
+        }
+    }
+
+    private class SaveInfoParser: VKApiResponseParser<VKSaveInfo> {
+        override fun parse(response: String): VKSaveInfo {
+            try {
+                val joResponse = JSONObject(response).getJSONArray("response").getJSONObject(0)
+                return VKSaveInfo(
+                        id = joResponse.getInt("id"),
+                        albumId = joResponse.getInt("album_id"),
+                        ownerId = joResponse.getInt("owner_id")
+                )
+            } catch (ex: JSONException) {
+                throw VKApiIllegalResponseException(ex)
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/samples/app/sdk/src/main/res/drawable-hdpi/user_placeholder.png b/samples/app/sdk/src/main/res/drawable-hdpi/user_placeholder.png
new file mode 100644
index 0000000000000000000000000000000000000000..382ce1eeb351e39aa5c0e96724f8e22272de8782
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diff --git a/samples/app/sdk/src/main/res/drawable-mdpi/user_placeholder.png b/samples/app/sdk/src/main/res/drawable-mdpi/user_placeholder.png
new file mode 100644
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GIT binary patch
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diff --git a/samples/app/sdk/src/main/res/drawable-xhdpi/user_placeholder.png b/samples/app/sdk/src/main/res/drawable-xhdpi/user_placeholder.png
new file mode 100644
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diff --git a/samples/app/sdk/src/main/res/drawable-xxhdpi/user_placeholder.png b/samples/app/sdk/src/main/res/drawable-xxhdpi/user_placeholder.png
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literal 0
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diff --git a/samples/app/sdk/src/main/res/layout/activity_user.xml b/samples/app/sdk/src/main/res/layout/activity_user.xml
new file mode 100644
index 0000000000..ae0d74d81c
--- /dev/null
+++ b/samples/app/sdk/src/main/res/layout/activity_user.xml
@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:layout_gravity="center"
+        android:gravity="center">
+        <ImageView
+            android:id="@+id/avatarIV"
+            android:layout_width="100dp"
+            android:layout_height="100dp"
+            android:layout_marginBottom="6dp"
+            android:scaleType="centerCrop"/>
+        <TextView
+            android:id="@+id/nameTV"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="16dp"
+            android:textSize="16sp"
+            android:textColor="@android:color/white"/>
+        <Button
+            android:id="@+id/logoutBtn"
+            android:layout_width="100dp"
+            android:layout_height="40dp"
+            android:layout_marginBottom="16dp"
+            android:text="@string/logout"
+            android:layout_gravity="center"
+            android:background="@android:color/white"
+            android:textColor="@color/colorPrimary" />
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/friendsRV"
+            android:layout_width="match_parent"
+            android:layout_height="150dp"
+            android:layout_marginBottom="16dp"/>
+        <EditText
+            android:id="@+id/messageET"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="8dp"
+            android:hint="@string/message_hint"
+            android:textSize="16sp"
+            android:textColorHint="@android:color/darker_gray"
+            android:textColor="@android:color/white"/>
+        <Button
+            android:id="@+id/shareBtn"
+            android:layout_width="100dp"
+            android:layout_height="40dp"
+            android:text="@string/share_to_wall"
+            android:layout_gravity="center"
+            android:background="@android:color/white"
+            android:textColor="@color/colorPrimary" />
+    </LinearLayout>
+
+</ScrollView>
\ No newline at end of file
diff --git a/samples/app/sdk/src/main/res/layout/activity_welcome.xml b/samples/app/sdk/src/main/res/layout/activity_welcome.xml
new file mode 100644
index 0000000000..a2387df589
--- /dev/null
+++ b/samples/app/sdk/src/main/res/layout/activity_welcome.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent" android:layout_height="match_parent">
+    <Button
+        android:id="@+id/loginBtn"
+        android:layout_width="100dp"
+        android:layout_height="40dp"
+        android:text="@string/login"
+        android:background="@android:color/white"
+        android:textColor="@color/colorPrimary"
+        android:layout_gravity="center"/>
+</FrameLayout>
\ No newline at end of file
diff --git a/samples/app/sdk/src/main/res/layout/item_user.xml b/samples/app/sdk/src/main/res/layout/item_user.xml
new file mode 100644
index 0000000000..d9d128411e
--- /dev/null
+++ b/samples/app/sdk/src/main/res/layout/item_user.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="150dp"
+    android:paddingRight="8dp"
+    android:paddingLeft="8dp"
+    android:gravity="center"
+    android:layout_height="wrap_content">
+    <ImageView
+        android:id="@+id/avatarIV"
+        android:layout_width="100dp"
+        android:layout_height="100dp"
+        android:layout_marginBottom="6dp"
+        android:scaleType="centerCrop"/>
+    <TextView
+        android:id="@+id/nameTV"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textSize="16sp"
+        android:textColor="@android:color/white"/>
+</LinearLayout>
\ No newline at end of file
diff --git a/samples/app/sdk/src/main/res/mipmap-hdpi/ic_launcher_round.png b/samples/app/sdk/src/main/res/mipmap-hdpi/ic_launcher_round.png
new file mode 100644
index 0000000000000000000000000000000000000000..1cff8082dae23f65bdf90b1b1230c62d0acc523d
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diff --git a/samples/app/sdk/src/main/res/mipmap-hdpi/mp_launcher.png b/samples/app/sdk/src/main/res/mipmap-hdpi/mp_launcher.png
new file mode 100644
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diff --git a/samples/app/sdk/src/main/res/mipmap-mdpi/ic_launcher_round.png b/samples/app/sdk/src/main/res/mipmap-mdpi/ic_launcher_round.png
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diff --git a/samples/app/sdk/src/main/res/mipmap-mdpi/mp_launcher.png b/samples/app/sdk/src/main/res/mipmap-mdpi/mp_launcher.png
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diff --git a/samples/app/sdk/src/main/res/mipmap-xhdpi/mp_launcher.png b/samples/app/sdk/src/main/res/mipmap-xhdpi/mp_launcher.png
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diff --git a/samples/app/sdk/src/main/res/mipmap-xxhdpi/ic_launcher_round.png b/samples/app/sdk/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
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diff --git a/samples/app/sdk/src/main/res/mipmap-xxhdpi/mp_launcher.png b/samples/app/sdk/src/main/res/mipmap-xxhdpi/mp_launcher.png
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diff --git a/samples/app/sdk/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png b/samples/app/sdk/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
new file mode 100644
index 0000000000000000000000000000000000000000..e7b10004ddfcd265593e5df1e803f773eabd17c2
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diff --git a/samples/app/sdk/src/main/res/mipmap-xxxhdpi/mp_launcher.png b/samples/app/sdk/src/main/res/mipmap-xxxhdpi/mp_launcher.png
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literal 0
HcmV?d00001

diff --git a/samples/app/sdk/src/main/res/values-es/strings.xml b/samples/app/sdk/src/main/res/values-es/strings.xml
new file mode 100644
index 0000000000..6e5ee98ae8
--- /dev/null
+++ b/samples/app/sdk/src/main/res/values-es/strings.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="login">Войти</string>
+    <string name="logout">Выйти</string>
+    <string name="share_to_wall">Publicar en el muro</string>
+    <string name="message_hint">Ваше сообщение</string>
+    <string name="wall_ok">Publicada</string>
+</resources>
diff --git a/samples/app/sdk/src/main/res/values-kk/strings.xml b/samples/app/sdk/src/main/res/values-kk/strings.xml
new file mode 100644
index 0000000000..30daba69f7
--- /dev/null
+++ b/samples/app/sdk/src/main/res/values-kk/strings.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="login">Кіру</string>
+    <string name="logout">Шығу</string>
+    <string name="share_to_wall">Қабырғаға жіберу</string>
+    <string name="message_hint">Хабарламаңыз</string>
+    <string name="wall_ok">Жазба жарияланды</string>
+</resources>
diff --git a/samples/app/sdk/src/main/res/values-pt/strings.xml b/samples/app/sdk/src/main/res/values-pt/strings.xml
new file mode 100644
index 0000000000..c02be6543a
--- /dev/null
+++ b/samples/app/sdk/src/main/res/values-pt/strings.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="login">Entrar</string>
+    <string name="logout">Sair</string>
+    <string name="share_to_wall">Publicar no mural</string>
+    <string name="message_hint">Sua mensagem</string>
+    <string name="wall_ok">Post publicado</string>
+</resources>
diff --git a/samples/app/sdk/src/main/res/values-ru/strings.xml b/samples/app/sdk/src/main/res/values-ru/strings.xml
new file mode 100644
index 0000000000..3d25d4fda2
--- /dev/null
+++ b/samples/app/sdk/src/main/res/values-ru/strings.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="login">Войти</string>
+    <string name="logout">Выйти</string>
+    <string name="share_to_wall">Отправить на стену</string>
+    <string name="message_hint">Ваше сообщение</string>
+    <string name="wall_ok">Запись опубликована</string>
+</resources>
diff --git a/samples/app/sdk/src/main/res/values-uk/strings.xml b/samples/app/sdk/src/main/res/values-uk/strings.xml
new file mode 100644
index 0000000000..9a3b38adb3
--- /dev/null
+++ b/samples/app/sdk/src/main/res/values-uk/strings.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="login">Увійти</string>
+    <string name="logout">Вийти</string>
+    <string name="share_to_wall">Опублікувати на стіні</string>
+    <string name="message_hint">Ваше повідомлення</string>
+    <string name="wall_ok">Запис опубліковано</string>
+</resources>
diff --git a/samples/app/sdk/src/main/res/values/attrs.xml b/samples/app/sdk/src/main/res/values/attrs.xml
new file mode 100644
index 0000000000..110c13e5d4
--- /dev/null
+++ b/samples/app/sdk/src/main/res/values/attrs.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <attr name="toolbarIconsColor" format="color"/>
+</resources>
\ No newline at end of file
diff --git a/samples/app/sdk/src/main/res/values/colors.xml b/samples/app/sdk/src/main/res/values/colors.xml
new file mode 100644
index 0000000000..3ab3e9cbce
--- /dev/null
+++ b/samples/app/sdk/src/main/res/values/colors.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorAccent">#FF4081</color>
+</resources>
diff --git a/samples/app/sdk/src/main/res/values/strings.xml b/samples/app/sdk/src/main/res/values/strings.xml
new file mode 100644
index 0000000000..7298c9baa9
--- /dev/null
+++ b/samples/app/sdk/src/main/res/values/strings.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="login">Войти</string>
+    <string name="logout">Выйти</string>
+    <string name="share_to_wall">Отправить на стену</string>
+    <string name="message_hint">Ваше сообщение</string>
+    <string name="wall_ok">Posted</string>
+</resources>
diff --git a/samples/app/sdk/src/main/res/values/styles.xml b/samples/app/sdk/src/main/res/values/styles.xml
new file mode 100644
index 0000000000..f047d9fa04
--- /dev/null
+++ b/samples/app/sdk/src/main/res/values/styles.xml
@@ -0,0 +1,12 @@
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+        <item name="android:windowBackground">@color/colorPrimary</item>
+    </style>
+
+</resources>
diff --git a/samples/app/sdk/src/main/res/xml/network_security_config.xml b/samples/app/sdk/src/main/res/xml/network_security_config.xml
new file mode 100644
index 0000000000..8ec5168796
--- /dev/null
+++ b/samples/app/sdk/src/main/res/xml/network_security_config.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<network-security-config>
+    <debug-overrides>
+        <trust-anchors>
+            <certificates src="system" />
+            <certificates src="user" />
+        </trust-anchors>
+    </debug-overrides>
+</network-security-config>
\ No newline at end of file
diff --git a/vk-sdk-api/README.md b/vk-sdk-api/README.md
index 7fc87b2404..d74e99a23e 100644
--- a/vk-sdk-api/README.md
+++ b/vk-sdk-api/README.md
@@ -1,7 +1,7 @@
 VK SDK api for Android
 ==========
 
-Current version is 5.122
+Current version is 5.126
 
 there are 3 packages now
 
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/Constants.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/Constants.kt
index bd0da18a2a..986760ab19 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/Constants.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/Constants.kt
@@ -30,5 +30,5 @@ package com.vk.sdk.api
 import kotlin.String
 
 object Constants {
-    const val API_VERSION: String = "5.122"
+    const val API_VERSION: String = "5.126"
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/GsonHolder.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/GsonHolder.kt
index 7d3d848690..2e7faadcef 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/GsonHolder.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/GsonHolder.kt
@@ -47,6 +47,8 @@ object GsonHolder {
                 com.vk.sdk.api.ads.dto.AdsGetUploadURLAdFormat.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.ads.dto.AdsGetCampaignsFields::class.java,
                 com.vk.sdk.api.ads.dto.AdsGetCampaignsFields.Serializer())
+        builder.registerTypeAdapter(com.vk.sdk.api.ads.dto.AdsAccessRolePublic::class.java,
+                com.vk.sdk.api.ads.dto.AdsAccessRolePublic.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.ads.dto.AdsGetDemographicsIdsType::class.java,
                 com.vk.sdk.api.ads.dto.AdsGetDemographicsIdsType.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.ads.dto.AdsAdApproved::class.java,
@@ -125,6 +127,8 @@ object GsonHolder {
                 com.vk.sdk.api.wall.dto.WallGetFilter.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.wall.dto.WallPostSourceType::class.java,
                 com.vk.sdk.api.wall.dto.WallPostSourceType.Serializer())
+        builder.registerTypeAdapter(com.vk.sdk.api.wall.dto.WallWallpostDonut.EditMode::class.java,
+                com.vk.sdk.api.wall.dto.WallWallpostDonut.EditMode.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.wall.dto.WallReportCommentReason::class.java,
                 com.vk.sdk.api.wall.dto.WallReportCommentReason.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.messages.dto.MessagesGetHistoryAttachmentsMediaType::class.java,
@@ -145,6 +149,8 @@ object GsonHolder {
                 com.vk.sdk.api.messages.dto.MessagesGetConversationsFilter.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.owner.dto.OwnerState.State::class.java,
                 com.vk.sdk.api.owner.dto.OwnerState.State.Serializer())
+        builder.registerTypeAdapter(com.vk.sdk.api.donut.dto.DonutDonatorSubscriptionInfo.Status::class.java,
+                com.vk.sdk.api.donut.dto.DonutDonatorSubscriptionInfo.Status.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.board.dto.BoardDefaultOrder::class.java,
                 com.vk.sdk.api.board.dto.BoardDefaultOrder.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.board.dto.BoardGetTopicsOrder::class.java,
@@ -161,10 +167,6 @@ object GsonHolder {
                 com.vk.sdk.api.likes.dto.LikesGetListFriendsOnly.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.auth.dto.AuthRestoreResponseDto.Success::class.java,
                 com.vk.sdk.api.auth.dto.AuthRestoreResponseDto.Success.Serializer())
-        builder.registerTypeAdapter(com.vk.sdk.api.leads.dto.LeadsCheckedResult::class.java,
-                com.vk.sdk.api.leads.dto.LeadsCheckedResult.Serializer())
-        builder.registerTypeAdapter(com.vk.sdk.api.leads.dto.LeadsGetUsersStatus::class.java,
-                com.vk.sdk.api.leads.dto.LeadsGetUsersStatus.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.appWidgets.dto.AppWidgetsGetAppImageUploadServerImageType::class.java,
                 com.vk.sdk.api.appWidgets.dto.AppWidgetsGetAppImageUploadServerImageType.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.appWidgets.dto.AppWidgetsGetAppImagesImageType::class.java,
@@ -209,8 +211,6 @@ object GsonHolder {
                 com.vk.sdk.api.groups.dto.GroupsOwnerXtrBanInfoType.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.groups.dto.GroupsGroupSubject::class.java,
                 com.vk.sdk.api.groups.dto.GroupsGroupSubject.Serializer())
-        builder.registerTypeAdapter(com.vk.sdk.api.groups.dto.GroupsGroupXtrInvitedByAdminLevel::class.java,
-                com.vk.sdk.api.groups.dto.GroupsGroupXtrInvitedByAdminLevel.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.groups.dto.GroupsRoleOptions::class.java,
                 com.vk.sdk.api.groups.dto.GroupsRoleOptions.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.groups.dto.GroupsGroupAdminLevel::class.java,
@@ -233,8 +233,6 @@ object GsonHolder {
                 com.vk.sdk.api.groups.dto.GroupsGroupVideo.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.groups.dto.GroupsSearchSort::class.java,
                 com.vk.sdk.api.groups.dto.GroupsSearchSort.Serializer())
-        builder.registerTypeAdapter(com.vk.sdk.api.groups.dto.GroupsGroupXtrInvitedByType::class.java,
-                com.vk.sdk.api.groups.dto.GroupsGroupXtrInvitedByType.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.groups.dto.GroupsSettingsTwitter.Status::class.java,
                 com.vk.sdk.api.groups.dto.GroupsSettingsTwitter.Status.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.groups.dto.GroupsFilter::class.java,
@@ -251,6 +249,8 @@ object GsonHolder {
                 com.vk.sdk.api.groups.dto.GroupsGetMembersFilter.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.groups.dto.GroupsAddressWorkInfoStatus::class.java,
                 com.vk.sdk.api.groups.dto.GroupsAddressWorkInfoStatus.Serializer())
+        builder.registerTypeAdapter(com.vk.sdk.api.groups.dto.GroupsUserXtrRole.WallDefault::class.java,
+                com.vk.sdk.api.groups.dto.GroupsUserXtrRole.WallDefault.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.groups.dto.GroupsGroupWiki::class.java,
                 com.vk.sdk.api.groups.dto.GroupsGroupWiki.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.groups.dto.GroupsTagAddTagColor::class.java,
@@ -295,6 +295,8 @@ object GsonHolder {
                 com.vk.sdk.api.groups.dto.GroupsGroupWall.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.groups.dto.GroupsEditAgeLimits::class.java,
                 com.vk.sdk.api.groups.dto.GroupsEditAgeLimits.Serializer())
+        builder.registerTypeAdapter(com.vk.sdk.api.groups.dto.GroupsGroupSuggestedPrivacy::class.java,
+                com.vk.sdk.api.groups.dto.GroupsGroupSuggestedPrivacy.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.groups.dto.GroupsGetInvitedUsersNameCase::class.java,
                 com.vk.sdk.api.groups.dto.GroupsGetInvitedUsersNameCase.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.groups.dto.GroupsGroupAgeLimits::class.java,
@@ -345,6 +347,8 @@ object GsonHolder {
                 com.vk.sdk.api.users.dto.UsersSearchSort.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.users.dto.UsersUserRelation::class.java,
                 com.vk.sdk.api.users.dto.UsersUserRelation.Serializer())
+        builder.registerTypeAdapter(com.vk.sdk.api.users.dto.UsersUserXtrCounters.WallDefault::class.java,
+                com.vk.sdk.api.users.dto.UsersUserXtrCounters.WallDefault.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.users.dto.UsersRelative.Type::class.java,
                 com.vk.sdk.api.users.dto.UsersRelative.Type.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.users.dto.UsersGetNameCase::class.java,
@@ -353,6 +357,8 @@ object GsonHolder {
                 com.vk.sdk.api.users.dto.UsersGetFollowersNameCase.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.users.dto.UsersReportType::class.java,
                 com.vk.sdk.api.users.dto.UsersReportType.Serializer())
+        builder.registerTypeAdapter(com.vk.sdk.api.users.dto.UsersUserFull.WallDefault::class.java,
+                com.vk.sdk.api.users.dto.UsersUserFull.WallDefault.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.users.dto.UsersFields::class.java,
                 com.vk.sdk.api.users.dto.UsersFields.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.users.dto.UsersSearchStatus::class.java,
@@ -381,12 +387,16 @@ object GsonHolder {
                 com.vk.sdk.api.callback.dto.CallbackGroupMarket.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.callback.dto.CallbackGroupJoinType::class.java,
                 com.vk.sdk.api.callback.dto.CallbackGroupJoinType.Serializer())
+        builder.registerTypeAdapter(com.vk.sdk.api.friends.dto.FriendsUserXtrLists.WallDefault::class.java,
+                com.vk.sdk.api.friends.dto.FriendsUserXtrLists.WallDefault.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.friends.dto.FriendsSearchNameCase::class.java,
                 com.vk.sdk.api.friends.dto.FriendsSearchNameCase.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.friends.dto.FriendsGetSuggestionsNameCase::class.java,
                 com.vk.sdk.api.friends.dto.FriendsGetSuggestionsNameCase.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.friends.dto.FriendsGetRequestsSort::class.java,
                 com.vk.sdk.api.friends.dto.FriendsGetRequestsSort.Serializer())
+        builder.registerTypeAdapter(com.vk.sdk.api.friends.dto.FriendsUserXtrPhone.WallDefault::class.java,
+                com.vk.sdk.api.friends.dto.FriendsUserXtrPhone.WallDefault.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.friends.dto.FriendsGetOrder::class.java,
                 com.vk.sdk.api.friends.dto.FriendsGetOrder.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.friends.dto.FriendsGetNameCase::class.java,
@@ -491,22 +501,28 @@ object GsonHolder {
                 com.vk.sdk.api.base.dto.BaseBoolInt.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.base.dto.BaseLinkButtonActionType::class.java,
                 com.vk.sdk.api.base.dto.BaseLinkButtonActionType.Serializer())
-        builder.registerTypeAdapter(com.vk.sdk.api.base.dto.BaseLinkProductStatus.Value::class.java,
-                com.vk.sdk.api.base.dto.BaseLinkProductStatus.Value.Serializer())
+        builder.registerTypeAdapter(com.vk.sdk.api.base.dto.BaseLinkProductStatus::class.java,
+                com.vk.sdk.api.base.dto.BaseLinkProductStatus.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.stats.dto.StatsGetInterval::class.java,
                 com.vk.sdk.api.stats.dto.StatsGetInterval.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.widgets.dto.WidgetsCommentMediaType::class.java,
                 com.vk.sdk.api.widgets.dto.WidgetsCommentMediaType.Serializer())
+        builder.registerTypeAdapter(com.vk.sdk.api.newsfeed.dto.NewsfeedItemDigestFooterButton.Style::class.java,
+                com.vk.sdk.api.newsfeed.dto.NewsfeedItemDigestFooterButton.Style.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.newsfeed.dto.NewsfeedItemWallpostFeedbackType::class.java,
                 com.vk.sdk.api.newsfeed.dto.NewsfeedItemWallpostFeedbackType.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.newsfeed.dto.NewsfeedItemDigest.Template::class.java,
                 com.vk.sdk.api.newsfeed.dto.NewsfeedItemDigest.Template.Serializer())
+        builder.registerTypeAdapter(com.vk.sdk.api.newsfeed.dto.NewsfeedItemDigestHeader.Style::class.java,
+                com.vk.sdk.api.newsfeed.dto.NewsfeedItemDigestHeader.Style.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.newsfeed.dto.NewsfeedNewsfeedItemType::class.java,
                 com.vk.sdk.api.newsfeed.dto.NewsfeedNewsfeedItemType.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.newsfeed.dto.NewsfeedItemWallpostType::class.java,
                 com.vk.sdk.api.newsfeed.dto.NewsfeedItemWallpostType.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.newsfeed.dto.NewsfeedUnsubscribeType::class.java,
                 com.vk.sdk.api.newsfeed.dto.NewsfeedUnsubscribeType.Serializer())
+        builder.registerTypeAdapter(com.vk.sdk.api.newsfeed.dto.NewsfeedItemDigestFooter.Style::class.java,
+                com.vk.sdk.api.newsfeed.dto.NewsfeedItemDigestFooter.Style.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.newsfeed.dto.NewsfeedFilters::class.java,
                 com.vk.sdk.api.newsfeed.dto.NewsfeedFilters.Serializer())
         builder.registerTypeAdapter(com.vk.sdk.api.newsfeed.dto.NewsfeedGetBannedNameCase::class.java,
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountAccountCounters.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountAccountCounters.kt
index e5d74950c3..adb35d2bb4 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountAccountCounters.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountAccountCounters.kt
@@ -40,6 +40,7 @@ import kotlin.Int
  * @param gifts New gifts number
  * @param groups New groups number
  * @param menuDiscoverBadge 
+ * @param menuClipsBadge no description
  * @param messages New messages number
  * @param memories New memories number
  * @param notes New notes number
@@ -66,6 +67,8 @@ data class AccountAccountCounters(
     val groups: Int? = null,
     @SerializedName(value="menu_discover_badge")
     val menuDiscoverBadge: Int? = null,
+    @SerializedName(value="menu_clips_badge")
+    val menuClipsBadge: Int? = null,
     @SerializedName(value="messages")
     val messages: Int? = null,
     @SerializedName(value="memories")
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountGetCountersFilter.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountGetCountersFilter.kt
index 850c27891a..f60c7513e4 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountGetCountersFilter.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountGetCountersFilter.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.account.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -56,12 +61,23 @@ enum class AccountGetCountersFilter(
 
     FRIENDS_SUGGESTIONS("friends_suggestions");
 
-    class Serializer : JsonDeserializer<AccountGetCountersFilter> {
+    class Serializer : JsonSerializer<AccountGetCountersFilter>,
+            JsonDeserializer<AccountGetCountersFilter> {
+        override fun serialize(
+            src: AccountGetCountersFilter?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AccountGetCountersFilter = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AccountGetCountersFilter {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountGetInfoFields.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountGetInfoFields.kt
index 9a10b28a4d..b80314735f 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountGetInfoFields.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountGetInfoFields.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.account.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -48,12 +53,23 @@ enum class AccountGetInfoFields(
 
     LANG("lang");
 
-    class Serializer : JsonDeserializer<AccountGetInfoFields> {
+    class Serializer : JsonSerializer<AccountGetInfoFields>, JsonDeserializer<AccountGetInfoFields>
+            {
+        override fun serialize(
+            src: AccountGetInfoFields?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AccountGetInfoFields = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AccountGetInfoFields {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountNameRequestStatus.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountNameRequestStatus.kt
index b5d78588df..ec4eb46af5 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountNameRequestStatus.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountNameRequestStatus.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.account.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -52,12 +57,23 @@ enum class AccountNameRequestStatus(
 
     RESPONSE_WITH_LINK("response_with_link");
 
-    class Serializer : JsonDeserializer<AccountNameRequestStatus> {
+    class Serializer : JsonSerializer<AccountNameRequestStatus>,
+            JsonDeserializer<AccountNameRequestStatus> {
+        override fun serialize(
+            src: AccountNameRequestStatus?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AccountNameRequestStatus = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AccountNameRequestStatus {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountOffer.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountOffer.kt
index e441a22f71..0f79c60202 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountOffer.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountOffer.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.account.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import java.lang.reflect.Type
 import kotlin.Float
@@ -85,13 +90,23 @@ data class AccountOffer(
 
         APP("app");
 
-        class Serializer : JsonDeserializer<LinkType> {
+        class Serializer : JsonSerializer<LinkType>, JsonDeserializer<LinkType> {
+            override fun serialize(
+                src: LinkType?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): LinkType = values().first { it.value.toString() == json!!.asJsonPrimitive.toString()
-                    }
+            ): LinkType {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountPushParamsMode.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountPushParamsMode.kt
index d7d117b3a4..ad2470a6f5 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountPushParamsMode.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountPushParamsMode.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.account.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -44,12 +49,23 @@ enum class AccountPushParamsMode(
 
     NO_TEXT("no_text");
 
-    class Serializer : JsonDeserializer<AccountPushParamsMode> {
+    class Serializer : JsonSerializer<AccountPushParamsMode>,
+            JsonDeserializer<AccountPushParamsMode> {
+        override fun serialize(
+            src: AccountPushParamsMode?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AccountPushParamsMode = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AccountPushParamsMode {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountPushParamsOnoff.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountPushParamsOnoff.kt
index 55fbf34b4e..bcf7ce8b30 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountPushParamsOnoff.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountPushParamsOnoff.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.account.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,23 @@ enum class AccountPushParamsOnoff(
 
     OFF("off");
 
-    class Serializer : JsonDeserializer<AccountPushParamsOnoff> {
+    class Serializer : JsonSerializer<AccountPushParamsOnoff>,
+            JsonDeserializer<AccountPushParamsOnoff> {
+        override fun serialize(
+            src: AccountPushParamsOnoff?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AccountPushParamsOnoff = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AccountPushParamsOnoff {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountPushParamsSettings.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountPushParamsSettings.kt
index 54af9a930a..0a9440475c 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountPushParamsSettings.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountPushParamsSettings.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.account.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,23 @@ enum class AccountPushParamsSettings(
 
     FR_OF_FR("fr_of_fr");
 
-    class Serializer : JsonDeserializer<AccountPushParamsSettings> {
+    class Serializer : JsonSerializer<AccountPushParamsSettings>,
+            JsonDeserializer<AccountPushParamsSettings> {
+        override fun serialize(
+            src: AccountPushParamsSettings?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AccountPushParamsSettings = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AccountPushParamsSettings {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountSaveProfileInfoBdateVisibility.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountSaveProfileInfoBdateVisibility.kt
index 6f7f566106..3cdec8077c 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountSaveProfileInfoBdateVisibility.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountSaveProfileInfoBdateVisibility.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.account.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,23 @@ enum class AccountSaveProfileInfoBdateVisibility(
 
     HIDE(0);
 
-    class Serializer : JsonDeserializer<AccountSaveProfileInfoBdateVisibility> {
+    class Serializer : JsonSerializer<AccountSaveProfileInfoBdateVisibility>,
+            JsonDeserializer<AccountSaveProfileInfoBdateVisibility> {
+        override fun serialize(
+            src: AccountSaveProfileInfoBdateVisibility?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AccountSaveProfileInfoBdateVisibility = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AccountSaveProfileInfoBdateVisibility {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountSaveProfileInfoRelation.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountSaveProfileInfoRelation.kt
index b0e875eb1f..a0c5e3164e 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountSaveProfileInfoRelation.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountSaveProfileInfoRelation.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.account.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -52,12 +57,23 @@ enum class AccountSaveProfileInfoRelation(
 
     NOT_SPECIFIED(0);
 
-    class Serializer : JsonDeserializer<AccountSaveProfileInfoRelation> {
+    class Serializer : JsonSerializer<AccountSaveProfileInfoRelation>,
+            JsonDeserializer<AccountSaveProfileInfoRelation> {
+        override fun serialize(
+            src: AccountSaveProfileInfoRelation?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AccountSaveProfileInfoRelation = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AccountSaveProfileInfoRelation {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountSaveProfileInfoSex.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountSaveProfileInfoSex.kt
index 730d333d0f..338597d71a 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountSaveProfileInfoSex.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/account/dto/AccountSaveProfileInfoSex.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.account.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,23 @@ enum class AccountSaveProfileInfoSex(
 
     MALE(2);
 
-    class Serializer : JsonDeserializer<AccountSaveProfileInfoSex> {
+    class Serializer : JsonSerializer<AccountSaveProfileInfoSex>,
+            JsonDeserializer<AccountSaveProfileInfoSex> {
+        override fun serialize(
+            src: AccountSaveProfileInfoSex?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AccountSaveProfileInfoSex = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AccountSaveProfileInfoSex {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/addresses/dto/AddressesFields.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/addresses/dto/AddressesFields.kt
index c2165a678f..d7c0ad42d3 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/addresses/dto/AddressesFields.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/addresses/dto/AddressesFields.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.addresses.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -66,12 +71,22 @@ enum class AddressesFields(
 
     HAS_VK_TAXI("has_vk_taxi");
 
-    class Serializer : JsonDeserializer<AddressesFields> {
+    class Serializer : JsonSerializer<AddressesFields>, JsonDeserializer<AddressesFields> {
+        override fun serialize(
+            src: AddressesFields?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AddressesFields = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AddressesFields {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAccessRole.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAccessRole.kt
index 17ff1fdc3c..3c06cc0a53 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAccessRole.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAccessRole.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,22 @@ enum class AdsAccessRole(
 
     REPORTS("reports");
 
-    class Serializer : JsonDeserializer<AdsAccessRole> {
+    class Serializer : JsonSerializer<AdsAccessRole>, JsonDeserializer<AdsAccessRole> {
+        override fun serialize(
+            src: AdsAccessRole?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsAccessRole = values().first { it.value.toString() == json!!.asJsonPrimitive.toString()
-                }
+        ): AdsAccessRole {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAccessRolePublic.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAccessRolePublic.kt
new file mode 100644
index 0000000000..0f577f7416
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAccessRolePublic.kt
@@ -0,0 +1,66 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.ads.dto
+
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
+import java.lang.reflect.Type
+import kotlin.String
+
+enum class AdsAccessRolePublic(
+    val value: String
+) {
+    MANAGER("manager"),
+
+    REPORTS("reports");
+
+    class Serializer : JsonSerializer<AdsAccessRolePublic>, JsonDeserializer<AdsAccessRolePublic> {
+        override fun serialize(
+            src: AdsAccessRolePublic?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
+        override fun deserialize(
+            json: JsonElement?,
+            typeOfT: Type?,
+            context: JsonDeserializationContext?
+        ): AdsAccessRolePublic {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
+    }
+}
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAccount.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAccount.kt
index af0de61e81..b4a2498688 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAccount.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAccount.kt
@@ -29,6 +29,7 @@ package com.vk.sdk.api.ads.dto
 
 import com.google.gson.annotations.SerializedName
 import com.vk.sdk.api.base.dto.BaseBoolInt
+import kotlin.Boolean
 import kotlin.Int
 import kotlin.String
 
@@ -38,6 +39,7 @@ import kotlin.String
  * @param accountStatus Information whether account is active
  * @param accountType no description
  * @param accountName Account name
+ * @param canViewBudget Can user view account budget
  */
 data class AdsAccount(
     @SerializedName(value="access_role")
@@ -49,5 +51,7 @@ data class AdsAccount(
     @SerializedName(value="account_type")
     val accountType: AdsAccountType,
     @SerializedName(value="account_name")
-    val accountName: String
+    val accountName: String,
+    @SerializedName(value="can_view_budget")
+    val canViewBudget: Boolean
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAccountType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAccountType.kt
index 51299f0738..cb8d5f7125 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAccountType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAccountType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,22 @@ enum class AdsAccountType(
 
     AGENCY("agency");
 
-    class Serializer : JsonDeserializer<AdsAccountType> {
+    class Serializer : JsonSerializer<AdsAccountType>, JsonDeserializer<AdsAccountType> {
+        override fun serialize(
+            src: AdsAccountType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsAccountType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AdsAccountType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAdApproved.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAdApproved.kt
index 0bec348c38..90d1d984b3 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAdApproved.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAdApproved.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -44,12 +49,22 @@ enum class AdsAdApproved(
 
     REJECTED(3);
 
-    class Serializer : JsonDeserializer<AdsAdApproved> {
+    class Serializer : JsonSerializer<AdsAdApproved>, JsonDeserializer<AdsAdApproved> {
+        override fun serialize(
+            src: AdsAdApproved?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsAdApproved = values().first { it.value.toString() == json!!.asJsonPrimitive.toString()
-                }
+        ): AdsAdApproved {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAdCostType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAdCostType.kt
index 6d66ced903..f4211780b6 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAdCostType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAdCostType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -44,12 +49,22 @@ enum class AdsAdCostType(
 
     PER_IMPRESSIONS_OPTIMIZED(3);
 
-    class Serializer : JsonDeserializer<AdsAdCostType> {
+    class Serializer : JsonSerializer<AdsAdCostType>, JsonDeserializer<AdsAdCostType> {
+        override fun serialize(
+            src: AdsAdCostType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsAdCostType = values().first { it.value.toString() == json!!.asJsonPrimitive.toString()
-                }
+        ): AdsAdCostType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAdStatus.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAdStatus.kt
index 046bbb515f..2a57d15249 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAdStatus.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsAdStatus.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,11 +47,22 @@ enum class AdsAdStatus(
 
     DELETED(2);
 
-    class Serializer : JsonDeserializer<AdsAdStatus> {
+    class Serializer : JsonSerializer<AdsAdStatus>, JsonDeserializer<AdsAdStatus> {
+        override fun serialize(
+            src: AdsAdStatus?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsAdStatus = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+        ): AdsAdStatus {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsCampaignStatus.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsCampaignStatus.kt
index 7cdcd6b4f7..174f2dfcc3 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsCampaignStatus.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsCampaignStatus.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,22 @@ enum class AdsCampaignStatus(
 
     DELETED(2);
 
-    class Serializer : JsonDeserializer<AdsCampaignStatus> {
+    class Serializer : JsonSerializer<AdsCampaignStatus>, JsonDeserializer<AdsCampaignStatus> {
+        override fun serialize(
+            src: AdsCampaignStatus?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsCampaignStatus = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AdsCampaignStatus {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsCampaignType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsCampaignType.kt
index 0246371520..c13243649c 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsCampaignType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsCampaignType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -44,12 +49,22 @@ enum class AdsCampaignType(
 
     PROMOTED_POSTS("promoted_posts");
 
-    class Serializer : JsonDeserializer<AdsCampaignType> {
+    class Serializer : JsonSerializer<AdsCampaignType>, JsonDeserializer<AdsCampaignType> {
+        override fun serialize(
+            src: AdsCampaignType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsCampaignType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AdsCampaignType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsCheckLinkLinkType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsCheckLinkLinkType.kt
index ad39bd3b5a..900db980d4 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsCheckLinkLinkType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsCheckLinkLinkType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -46,12 +51,23 @@ enum class AdsCheckLinkLinkType(
 
     SITE("site");
 
-    class Serializer : JsonDeserializer<AdsCheckLinkLinkType> {
+    class Serializer : JsonSerializer<AdsCheckLinkLinkType>, JsonDeserializer<AdsCheckLinkLinkType>
+            {
+        override fun serialize(
+            src: AdsCheckLinkLinkType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsCheckLinkLinkType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AdsCheckLinkLinkType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsCriteriaSex.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsCriteriaSex.kt
index 84de769fb7..6370591194 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsCriteriaSex.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsCriteriaSex.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,22 @@ enum class AdsCriteriaSex(
 
     FEMALE(2);
 
-    class Serializer : JsonDeserializer<AdsCriteriaSex> {
+    class Serializer : JsonSerializer<AdsCriteriaSex>, JsonDeserializer<AdsCriteriaSex> {
+        override fun serialize(
+            src: AdsCriteriaSex?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsCriteriaSex = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AdsCriteriaSex {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetCampaignsFields.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetCampaignsFields.kt
index af8f03a610..ae52907969 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetCampaignsFields.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetCampaignsFields.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -38,12 +43,23 @@ enum class AdsGetCampaignsFields(
 ) {
     ADS_COUNT("ads_count");
 
-    class Serializer : JsonDeserializer<AdsGetCampaignsFields> {
+    class Serializer : JsonSerializer<AdsGetCampaignsFields>,
+            JsonDeserializer<AdsGetCampaignsFields> {
+        override fun serialize(
+            src: AdsGetCampaignsFields?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsGetCampaignsFields = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AdsGetCampaignsFields {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetDemographicsIdsType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetDemographicsIdsType.kt
index fd0e480910..b44e889897 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetDemographicsIdsType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetDemographicsIdsType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,23 @@ enum class AdsGetDemographicsIdsType(
 
     CAMPAIGN("campaign");
 
-    class Serializer : JsonDeserializer<AdsGetDemographicsIdsType> {
+    class Serializer : JsonSerializer<AdsGetDemographicsIdsType>,
+            JsonDeserializer<AdsGetDemographicsIdsType> {
+        override fun serialize(
+            src: AdsGetDemographicsIdsType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsGetDemographicsIdsType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AdsGetDemographicsIdsType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetDemographicsPeriod.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetDemographicsPeriod.kt
index c75dedfa34..c29126e8fd 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetDemographicsPeriod.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetDemographicsPeriod.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,23 @@ enum class AdsGetDemographicsPeriod(
 
     OVERALL("overall");
 
-    class Serializer : JsonDeserializer<AdsGetDemographicsPeriod> {
+    class Serializer : JsonSerializer<AdsGetDemographicsPeriod>,
+            JsonDeserializer<AdsGetDemographicsPeriod> {
+        override fun serialize(
+            src: AdsGetDemographicsPeriod?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsGetDemographicsPeriod = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AdsGetDemographicsPeriod {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetPostsReachIdsType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetPostsReachIdsType.kt
index 8cff4ea854..be76bd43e4 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetPostsReachIdsType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetPostsReachIdsType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,23 @@ enum class AdsGetPostsReachIdsType(
 
     CAMPAIGN("campaign");
 
-    class Serializer : JsonDeserializer<AdsGetPostsReachIdsType> {
+    class Serializer : JsonSerializer<AdsGetPostsReachIdsType>,
+            JsonDeserializer<AdsGetPostsReachIdsType> {
+        override fun serialize(
+            src: AdsGetPostsReachIdsType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsGetPostsReachIdsType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AdsGetPostsReachIdsType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetStatisticsIdsType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetStatisticsIdsType.kt
index 9aa4617bea..22f81b63c3 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetStatisticsIdsType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetStatisticsIdsType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -44,12 +49,23 @@ enum class AdsGetStatisticsIdsType(
 
     OFFICE("office");
 
-    class Serializer : JsonDeserializer<AdsGetStatisticsIdsType> {
+    class Serializer : JsonSerializer<AdsGetStatisticsIdsType>,
+            JsonDeserializer<AdsGetStatisticsIdsType> {
+        override fun serialize(
+            src: AdsGetStatisticsIdsType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsGetStatisticsIdsType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AdsGetStatisticsIdsType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetStatisticsPeriod.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetStatisticsPeriod.kt
index 29e26a3d82..32912c8304 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetStatisticsPeriod.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetStatisticsPeriod.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,23 @@ enum class AdsGetStatisticsPeriod(
 
     OVERALL("overall");
 
-    class Serializer : JsonDeserializer<AdsGetStatisticsPeriod> {
+    class Serializer : JsonSerializer<AdsGetStatisticsPeriod>,
+            JsonDeserializer<AdsGetStatisticsPeriod> {
+        override fun serialize(
+            src: AdsGetStatisticsPeriod?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsGetStatisticsPeriod = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AdsGetStatisticsPeriod {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetStatisticsStatsFields.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetStatisticsStatsFields.kt
index c428cde6d9..9e036cbe04 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetStatisticsStatsFields.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetStatisticsStatsFields.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -38,12 +43,23 @@ enum class AdsGetStatisticsStatsFields(
 ) {
     VIEWS_TIMES("views_times");
 
-    class Serializer : JsonDeserializer<AdsGetStatisticsStatsFields> {
+    class Serializer : JsonSerializer<AdsGetStatisticsStatsFields>,
+            JsonDeserializer<AdsGetStatisticsStatsFields> {
+        override fun serialize(
+            src: AdsGetStatisticsStatsFields?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsGetStatisticsStatsFields = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AdsGetStatisticsStatsFields {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetSuggestionsLang.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetSuggestionsLang.kt
index 550938748b..68b1986fb9 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetSuggestionsLang.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetSuggestionsLang.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,23 @@ enum class AdsGetSuggestionsLang(
 
     ENGLISH("en");
 
-    class Serializer : JsonDeserializer<AdsGetSuggestionsLang> {
+    class Serializer : JsonSerializer<AdsGetSuggestionsLang>,
+            JsonDeserializer<AdsGetSuggestionsLang> {
+        override fun serialize(
+            src: AdsGetSuggestionsLang?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsGetSuggestionsLang = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AdsGetSuggestionsLang {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetSuggestionsSection.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetSuggestionsSection.kt
index 7d88658190..cc43d23634 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetSuggestionsSection.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetSuggestionsSection.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -60,12 +65,23 @@ enum class AdsGetSuggestionsSection(
 
     BROWSERS("browsers");
 
-    class Serializer : JsonDeserializer<AdsGetSuggestionsSection> {
+    class Serializer : JsonSerializer<AdsGetSuggestionsSection>,
+            JsonDeserializer<AdsGetSuggestionsSection> {
+        override fun serialize(
+            src: AdsGetSuggestionsSection?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsGetSuggestionsSection = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AdsGetSuggestionsSection {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetTargetingStatsAdFormat.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetTargetingStatsAdFormat.kt
index cbec0b7877..caa9946160 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetTargetingStatsAdFormat.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetTargetingStatsAdFormat.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -52,12 +57,23 @@ enum class AdsGetTargetingStatsAdFormat(
 
     APP_BOARD(10);
 
-    class Serializer : JsonDeserializer<AdsGetTargetingStatsAdFormat> {
+    class Serializer : JsonSerializer<AdsGetTargetingStatsAdFormat>,
+            JsonDeserializer<AdsGetTargetingStatsAdFormat> {
+        override fun serialize(
+            src: AdsGetTargetingStatsAdFormat?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsGetTargetingStatsAdFormat = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AdsGetTargetingStatsAdFormat {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetUploadURLAdFormat.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetUploadURLAdFormat.kt
index 4f77f6af31..068a1290e4 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetUploadURLAdFormat.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsGetUploadURLAdFormat.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -46,12 +51,23 @@ enum class AdsGetUploadURLAdFormat(
 
     SPECIAL_APP_FORMAT(7);
 
-    class Serializer : JsonDeserializer<AdsGetUploadURLAdFormat> {
+    class Serializer : JsonSerializer<AdsGetUploadURLAdFormat>,
+            JsonDeserializer<AdsGetUploadURLAdFormat> {
+        override fun serialize(
+            src: AdsGetUploadURLAdFormat?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsGetUploadURLAdFormat = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AdsGetUploadURLAdFormat {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsLookalikeRequest.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsLookalikeRequest.kt
index bb1673f1b2..3b2b4657a2 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsLookalikeRequest.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsLookalikeRequest.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import java.lang.reflect.Type
 import kotlin.Int
@@ -79,13 +84,23 @@ data class AdsLookalikeRequest(
 
         PROMOTED_POST("promoted_post");
 
-        class Serializer : JsonDeserializer<SourceType> {
+        class Serializer : JsonSerializer<SourceType>, JsonDeserializer<SourceType> {
+            override fun serialize(
+                src: SourceType?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): SourceType = values().first { it.value.toString() ==
-                    json!!.asJsonPrimitive.toString() }
+            ): SourceType {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 
@@ -112,12 +127,23 @@ data class AdsLookalikeRequest(
 
         CANCELED("canceled");
 
-        class Serializer : JsonDeserializer<Status> {
+        class Serializer : JsonSerializer<Status>, JsonDeserializer<Status> {
+            override fun serialize(
+                src: Status?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): Status = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Status {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsObjectType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsObjectType.kt
index d07a6ec6a8..c6b575290c 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsObjectType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsObjectType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -44,12 +49,22 @@ enum class AdsObjectType(
 
     OFFICE("office");
 
-    class Serializer : JsonDeserializer<AdsObjectType> {
+    class Serializer : JsonSerializer<AdsObjectType>, JsonDeserializer<AdsObjectType> {
+        override fun serialize(
+            src: AdsObjectType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsObjectType = values().first { it.value.toString() == json!!.asJsonPrimitive.toString()
-                }
+        ): AdsObjectType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsStatsSexValue.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsStatsSexValue.kt
index d5a647f976..fdd6eef4b0 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsStatsSexValue.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsStatsSexValue.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,22 @@ enum class AdsStatsSexValue(
 
     MALE("m");
 
-    class Serializer : JsonDeserializer<AdsStatsSexValue> {
+    class Serializer : JsonSerializer<AdsStatsSexValue>, JsonDeserializer<AdsStatsSexValue> {
+        override fun serialize(
+            src: AdsStatsSexValue?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsStatsSexValue = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AdsStatsSexValue {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsTargSuggestionsSchoolsType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsTargSuggestionsSchoolsType.kt
index c7923c8849..abaa00c1d0 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsTargSuggestionsSchoolsType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsTargSuggestionsSchoolsType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.ads.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -44,12 +49,23 @@ enum class AdsTargSuggestionsSchoolsType(
 
     CHAIR("chair");
 
-    class Serializer : JsonDeserializer<AdsTargSuggestionsSchoolsType> {
+    class Serializer : JsonSerializer<AdsTargSuggestionsSchoolsType>,
+            JsonDeserializer<AdsTargSuggestionsSchoolsType> {
+        override fun serialize(
+            src: AdsTargSuggestionsSchoolsType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AdsTargSuggestionsSchoolsType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AdsTargSuggestionsSchoolsType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsUserSpecification.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsUserSpecification.kt
index c05bd33996..4b16fce6df 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsUserSpecification.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsUserSpecification.kt
@@ -34,6 +34,7 @@ import kotlin.collections.List
 
 /**
  * @param userId no description
+ * @param role no description
  * @param grantAccessToAllClients no description
  * @param clientIds no description
  * @param viewBudget no description
@@ -41,6 +42,8 @@ import kotlin.collections.List
 data class AdsUserSpecification(
     @SerializedName(value="user_id")
     val userId: Int,
+    @SerializedName(value="role")
+    val role: AdsAccessRolePublic,
     @SerializedName(value="grant_access_to_all_clients")
     val grantAccessToAllClients: Boolean? = null,
     @SerializedName(value="client_ids")
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsUserSpecificationCutted.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsUserSpecificationCutted.kt
new file mode 100644
index 0000000000..530f9aa2e9
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/dto/AdsUserSpecificationCutted.kt
@@ -0,0 +1,49 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.ads.dto
+
+import com.google.gson.annotations.SerializedName
+import kotlin.Boolean
+import kotlin.Int
+
+/**
+ * @param userId no description
+ * @param role no description
+ * @param clientId no description
+ * @param viewBudget no description
+ */
+data class AdsUserSpecificationCutted(
+    @SerializedName(value="user_id")
+    val userId: Int,
+    @SerializedName(value="role")
+    val role: AdsAccessRolePublic,
+    @SerializedName(value="client_id")
+    val clientId: Int? = null,
+    @SerializedName(value="view_budget")
+    val viewBudget: Boolean? = null
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/methods/AdsAddOfficeUsers.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/methods/AdsAddOfficeUsers.kt
index 8d247fa1ff..72740e68b3 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/methods/AdsAddOfficeUsers.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/methods/AdsAddOfficeUsers.kt
@@ -29,7 +29,7 @@ package com.vk.sdk.api.ads.methods
 
 import com.vk.sdk.api.ApiRequestBase
 import com.vk.sdk.api.GsonHolder
-import com.vk.sdk.api.ads.dto.AdsUserSpecification
+import com.vk.sdk.api.ads.dto.AdsUserSpecificationCutted
 import com.vk.sdk.api.ads.responses.AdsAddOfficeUsersResponse
 import kotlin.Boolean
 import kotlin.Int
@@ -44,7 +44,7 @@ import org.json.JSONObject
  */
 class AdsAddOfficeUsers(
     private val accountId: Int,
-    private val data: List<AdsUserSpecification>
+    private val data: List<AdsUserSpecificationCutted>
 ) : ApiRequestBase<Boolean>(methodName = "ads.addOfficeUsers") {
     init {
         addParam("account_id", accountId)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/methods/AdsGetTargetingStats.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/methods/AdsGetTargetingStats.kt
index a6820afa5f..34020e9e7f 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/methods/AdsGetTargetingStats.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/ads/methods/AdsGetTargetingStats.kt
@@ -56,6 +56,8 @@ import org.json.JSONObject
  * @param linkDomain Domain of the advertised object. 
  * @param needPrecise Additionally return recommended cpc and cpm to reach 5,10..95 percents of
  * audience. 
+ * @param impressionsLimitPeriod Impressions limit period in seconds, must be a multiple of
+ * 86400(day) 
  */
 class AdsGetTargetingStats(
     private val accountId: Int,
@@ -68,7 +70,8 @@ class AdsGetTargetingStats(
     private val adPlatformNoWall: String? = null,
     private val adPlatformNoAdNetwork: String? = null,
     private val linkDomain: String? = null,
-    private val needPrecise: Boolean? = null
+    private val needPrecise: Boolean? = null,
+    private val impressionsLimitPeriod: Int? = null
 ) : ApiRequestBase<AdsTargStats>(methodName = "ads.getTargetingStats") {
     init {
         addParam("account_id", accountId)
@@ -100,6 +103,9 @@ class AdsGetTargetingStats(
         needPrecise?.let { value ->
             addParam("need_precise", if (value) 1 else 0)
         }
+        impressionsLimitPeriod?.let { value ->
+            addParam("impressions_limit_period", value)
+        }
     }
 
     override fun parse(r: JSONObject): AdsTargStats = GsonHolder.gson.fromJson(r.toString(),
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/appWidgets/dto/AppWidgetsGetAppImageUploadServerImageType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/appWidgets/dto/AppWidgetsGetAppImageUploadServerImageType.kt
index 138e73fba4..862227b95b 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/appWidgets/dto/AppWidgetsGetAppImageUploadServerImageType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/appWidgets/dto/AppWidgetsGetAppImageUploadServerImageType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.appWidgets.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -46,12 +51,23 @@ enum class AppWidgetsGetAppImageUploadServerImageType(
 
     FIFTY_ONE_0X128("510x128");
 
-    class Serializer : JsonDeserializer<AppWidgetsGetAppImageUploadServerImageType> {
+    class Serializer : JsonSerializer<AppWidgetsGetAppImageUploadServerImageType>,
+            JsonDeserializer<AppWidgetsGetAppImageUploadServerImageType> {
+        override fun serialize(
+            src: AppWidgetsGetAppImageUploadServerImageType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AppWidgetsGetAppImageUploadServerImageType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AppWidgetsGetAppImageUploadServerImageType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/appWidgets/dto/AppWidgetsGetAppImagesImageType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/appWidgets/dto/AppWidgetsGetAppImagesImageType.kt
index 69a9634a8e..a9f67a362d 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/appWidgets/dto/AppWidgetsGetAppImagesImageType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/appWidgets/dto/AppWidgetsGetAppImagesImageType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.appWidgets.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -46,12 +51,23 @@ enum class AppWidgetsGetAppImagesImageType(
 
     FIFTY_ONE_0X128("510x128");
 
-    class Serializer : JsonDeserializer<AppWidgetsGetAppImagesImageType> {
+    class Serializer : JsonSerializer<AppWidgetsGetAppImagesImageType>,
+            JsonDeserializer<AppWidgetsGetAppImagesImageType> {
+        override fun serialize(
+            src: AppWidgetsGetAppImagesImageType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AppWidgetsGetAppImagesImageType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AppWidgetsGetAppImagesImageType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/appWidgets/dto/AppWidgetsGetGroupImageUploadServerImageType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/appWidgets/dto/AppWidgetsGetGroupImageUploadServerImageType.kt
index efb35a1e63..869b7a4052 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/appWidgets/dto/AppWidgetsGetGroupImageUploadServerImageType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/appWidgets/dto/AppWidgetsGetGroupImageUploadServerImageType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.appWidgets.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -46,12 +51,23 @@ enum class AppWidgetsGetGroupImageUploadServerImageType(
 
     FIFTY_ONE_0X128("510x128");
 
-    class Serializer : JsonDeserializer<AppWidgetsGetGroupImageUploadServerImageType> {
+    class Serializer : JsonSerializer<AppWidgetsGetGroupImageUploadServerImageType>,
+            JsonDeserializer<AppWidgetsGetGroupImageUploadServerImageType> {
+        override fun serialize(
+            src: AppWidgetsGetGroupImageUploadServerImageType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AppWidgetsGetGroupImageUploadServerImageType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AppWidgetsGetGroupImageUploadServerImageType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/appWidgets/dto/AppWidgetsGetGroupImagesImageType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/appWidgets/dto/AppWidgetsGetGroupImagesImageType.kt
index 2d02c103bd..e12f60bc87 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/appWidgets/dto/AppWidgetsGetGroupImagesImageType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/appWidgets/dto/AppWidgetsGetGroupImagesImageType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.appWidgets.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -46,12 +51,23 @@ enum class AppWidgetsGetGroupImagesImageType(
 
     FIFTY_ONE_0X128("510x128");
 
-    class Serializer : JsonDeserializer<AppWidgetsGetGroupImagesImageType> {
+    class Serializer : JsonSerializer<AppWidgetsGetGroupImagesImageType>,
+            JsonDeserializer<AppWidgetsGetGroupImagesImageType> {
+        override fun serialize(
+            src: AppWidgetsGetGroupImagesImageType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AppWidgetsGetGroupImagesImageType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AppWidgetsGetGroupImagesImageType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/appWidgets/dto/AppWidgetsUpdateType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/appWidgets/dto/AppWidgetsUpdateType.kt
index ec0530addc..1b9d687fd4 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/appWidgets/dto/AppWidgetsUpdateType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/appWidgets/dto/AppWidgetsUpdateType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.appWidgets.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -54,12 +59,23 @@ enum class AppWidgetsUpdateType(
 
     TILES("tiles");
 
-    class Serializer : JsonDeserializer<AppWidgetsUpdateType> {
+    class Serializer : JsonSerializer<AppWidgetsUpdateType>, JsonDeserializer<AppWidgetsUpdateType>
+            {
+        override fun serialize(
+            src: AppWidgetsUpdateType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AppWidgetsUpdateType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AppWidgetsUpdateType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsAppLeaderboardType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsAppLeaderboardType.kt
index 878a87891f..030ac639eb 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsAppLeaderboardType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsAppLeaderboardType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.apps.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,23 @@ enum class AppsAppLeaderboardType(
 
     POINTS(2);
 
-    class Serializer : JsonDeserializer<AppsAppLeaderboardType> {
+    class Serializer : JsonSerializer<AppsAppLeaderboardType>,
+            JsonDeserializer<AppsAppLeaderboardType> {
+        override fun serialize(
+            src: AppsAppLeaderboardType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AppsAppLeaderboardType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AppsAppLeaderboardType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetCatalogFilter.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetCatalogFilter.kt
index ba29eb3d7a..bf0e17edae 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetCatalogFilter.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetCatalogFilter.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.apps.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -44,12 +49,23 @@ enum class AppsGetCatalogFilter(
 
     NEW("new");
 
-    class Serializer : JsonDeserializer<AppsGetCatalogFilter> {
+    class Serializer : JsonSerializer<AppsGetCatalogFilter>, JsonDeserializer<AppsGetCatalogFilter>
+            {
+        override fun serialize(
+            src: AppsGetCatalogFilter?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AppsGetCatalogFilter = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AppsGetCatalogFilter {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetCatalogResponseDto.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetCatalogResponseDto.kt
index 0c6a8292ab..abb5d7e8fd 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetCatalogResponseDto.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetCatalogResponseDto.kt
@@ -28,16 +28,20 @@
 package com.vk.sdk.api.apps.dto
 
 import com.google.gson.annotations.SerializedName
+import com.vk.sdk.api.users.dto.UsersUserMin
 import kotlin.Int
 import kotlin.collections.List
 
 /**
  * @param count Total number
  * @param items no description
+ * @param profiles no description
  */
 data class AppsGetCatalogResponseDto(
     @SerializedName(value="count")
     val count: Int? = null,
     @SerializedName(value="items")
-    val items: List<AppsApp>? = null
+    val items: List<AppsApp>? = null,
+    @SerializedName(value="profiles")
+    val profiles: List<UsersUserMin>? = null
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetCatalogSort.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetCatalogSort.kt
index 5d8a642c12..3cba8f0964 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetCatalogSort.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetCatalogSort.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.apps.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -46,12 +51,22 @@ enum class AppsGetCatalogSort(
 
     POPULAR_WEEK("popular_week");
 
-    class Serializer : JsonDeserializer<AppsGetCatalogSort> {
+    class Serializer : JsonSerializer<AppsGetCatalogSort>, JsonDeserializer<AppsGetCatalogSort> {
+        override fun serialize(
+            src: AppsGetCatalogSort?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AppsGetCatalogSort = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AppsGetCatalogSort {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetFriendsListType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetFriendsListType.kt
index 621f9e97a6..71a8a438bb 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetFriendsListType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetFriendsListType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.apps.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,23 @@ enum class AppsGetFriendsListType(
 
     REQUEST("request");
 
-    class Serializer : JsonDeserializer<AppsGetFriendsListType> {
+    class Serializer : JsonSerializer<AppsGetFriendsListType>,
+            JsonDeserializer<AppsGetFriendsListType> {
+        override fun serialize(
+            src: AppsGetFriendsListType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AppsGetFriendsListType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AppsGetFriendsListType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetLeaderboardType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetLeaderboardType.kt
index 5f70dc4e37..021e2261b8 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetLeaderboardType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetLeaderboardType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.apps.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,23 @@ enum class AppsGetLeaderboardType(
 
     SCORE("score");
 
-    class Serializer : JsonDeserializer<AppsGetLeaderboardType> {
+    class Serializer : JsonSerializer<AppsGetLeaderboardType>,
+            JsonDeserializer<AppsGetLeaderboardType> {
+        override fun serialize(
+            src: AppsGetLeaderboardType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AppsGetLeaderboardType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AppsGetLeaderboardType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetNameCase.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetNameCase.kt
index 7207768192..4a4decbd03 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetNameCase.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetNameCase.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.apps.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -48,12 +53,22 @@ enum class AppsGetNameCase(
 
     PREPOSITIONAL("abl");
 
-    class Serializer : JsonDeserializer<AppsGetNameCase> {
+    class Serializer : JsonSerializer<AppsGetNameCase>, JsonDeserializer<AppsGetNameCase> {
+        override fun serialize(
+            src: AppsGetNameCase?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AppsGetNameCase = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AppsGetNameCase {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetPlatform.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetPlatform.kt
index 66a466f7c3..663d134c96 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetPlatform.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetPlatform.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.apps.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -44,12 +49,22 @@ enum class AppsGetPlatform(
 
     WINPHONE("winphone");
 
-    class Serializer : JsonDeserializer<AppsGetPlatform> {
+    class Serializer : JsonSerializer<AppsGetPlatform>, JsonDeserializer<AppsGetPlatform> {
+        override fun serialize(
+            src: AppsGetPlatform?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AppsGetPlatform = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AppsGetPlatform {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetScopesType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetScopesType.kt
index 39af0aa766..b43f43a2d0 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetScopesType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsGetScopesType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.apps.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,22 @@ enum class AppsGetScopesType(
 
     USER("user");
 
-    class Serializer : JsonDeserializer<AppsGetScopesType> {
+    class Serializer : JsonSerializer<AppsGetScopesType>, JsonDeserializer<AppsGetScopesType> {
+        override fun serialize(
+            src: AppsGetScopesType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AppsGetScopesType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AppsGetScopesType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsScope.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsScope.kt
index ba33491b3b..a9982a1555 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsScope.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsScope.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.apps.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import java.lang.reflect.Type
 import kotlin.String
@@ -69,12 +74,23 @@ data class AppsScope(
 
         MARKET("market");
 
-        class Serializer : JsonDeserializer<Name> {
+        class Serializer : JsonSerializer<Name>, JsonDeserializer<Name> {
+            override fun serialize(
+                src: Name?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): Name = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Name {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsSendRequestType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsSendRequestType.kt
index fae86d7d5b..3c3fc57057 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsSendRequestType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/apps/dto/AppsSendRequestType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.apps.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,22 @@ enum class AppsSendRequestType(
 
     REQUEST("request");
 
-    class Serializer : JsonDeserializer<AppsSendRequestType> {
+    class Serializer : JsonSerializer<AppsSendRequestType>, JsonDeserializer<AppsSendRequestType> {
+        override fun serialize(
+            src: AppsSendRequestType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): AppsSendRequestType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): AppsSendRequestType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/auth/dto/AuthRestoreResponseDto.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/auth/dto/AuthRestoreResponseDto.kt
index b2aca2cd8e..d54e419c0a 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/auth/dto/AuthRestoreResponseDto.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/auth/dto/AuthRestoreResponseDto.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.auth.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import java.lang.reflect.Type
 import kotlin.Int
@@ -50,12 +55,23 @@ data class AuthRestoreResponseDto(
     ) {
         OK(1);
 
-        class Serializer : JsonDeserializer<Success> {
+        class Serializer : JsonSerializer<Success>, JsonDeserializer<Success> {
+            override fun serialize(
+                src: Success?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): Success = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Success {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseBoolInt.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseBoolInt.kt
index d51ab4e472..bb7a48db55 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseBoolInt.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseBoolInt.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.base.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -40,11 +45,22 @@ enum class BaseBoolInt(
 
     YES(1);
 
-    class Serializer : JsonDeserializer<BaseBoolInt> {
+    class Serializer : JsonSerializer<BaseBoolInt>, JsonDeserializer<BaseBoolInt> {
+        override fun serialize(
+            src: BaseBoolInt?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): BaseBoolInt = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+        ): BaseBoolInt {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseCommentsInfo.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseCommentsInfo.kt
index 2fc8542c5d..f0ad3a3901 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseCommentsInfo.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseCommentsInfo.kt
@@ -28,6 +28,7 @@
 package com.vk.sdk.api.base.dto
 
 import com.google.gson.annotations.SerializedName
+import com.vk.sdk.api.wall.dto.WallWallpostCommentsDonut
 import kotlin.Boolean
 import kotlin.Int
 
@@ -35,6 +36,7 @@ import kotlin.Int
  * @param canPost Information whether current user can comment the post
  * @param count Comments number
  * @param groupsCanPost Information whether groups can comment the post
+ * @param donut no description
  */
 data class BaseCommentsInfo(
     @SerializedName(value="can_post")
@@ -42,5 +44,7 @@ data class BaseCommentsInfo(
     @SerializedName(value="count")
     val count: Int? = null,
     @SerializedName(value="groups_can_post")
-    val groupsCanPost: Boolean? = null
+    val groupsCanPost: Boolean? = null,
+    @SerializedName(value="donut")
+    val donut: WallWallpostCommentsDonut? = null
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseLinkButton.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseLinkButton.kt
index 487945988f..c9df4c5cc8 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseLinkButton.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseLinkButton.kt
@@ -36,6 +36,7 @@ import kotlin.String
  * @param title Button title
  * @param blockId Target block id
  * @param sectionId Target section id
+ * @param curatorId curator id
  * @param ownerId Owner id
  * @param icon Button icon name, e.g. 'phone' or 'gift'
  * @param style no description
@@ -49,6 +50,8 @@ data class BaseLinkButton(
     val blockId: String? = null,
     @SerializedName(value="section_id")
     val sectionId: String? = null,
+    @SerializedName(value="curator_id")
+    val curatorId: Int? = null,
     @SerializedName(value="owner_id")
     val ownerId: Int? = null,
     @SerializedName(value="icon")
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseLinkButtonActionType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseLinkButtonActionType.kt
index 7d3a650324..4c47c80fc0 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseLinkButtonActionType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseLinkButtonActionType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.base.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -84,14 +89,41 @@ enum class BaseLinkButtonActionType(
 
     CLEAR_RECENT_GROUPS("clear_recent_groups"),
 
-    CLOSE_CATALOG_BANNER("close_catalog_banner");
+    CLOSE_CATALOG_BANNER("close_catalog_banner"),
+
+    ENABLE_TOP_NEWSFEED("enable_top_newsfeed"),
+
+    GROUPS_ADVERTISEMENT("groups_advertisement"),
+
+    OWNER_BUTTON("owner_button"),
+
+    ENTER_EDIT_MODE("enter_edit_mode"),
+
+    PLAYLISTS_LISTS("playlists_lists"),
+
+    UNFOLLOW_CURATOR("unfollow_curator"),
+
+    REORDER_ITEMS("reorder_items"),
+
+    EDIT_ITEMS("edit_items");
+
+    class Serializer : JsonSerializer<BaseLinkButtonActionType>,
+            JsonDeserializer<BaseLinkButtonActionType> {
+        override fun serialize(
+            src: BaseLinkButtonActionType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
 
-    class Serializer : JsonDeserializer<BaseLinkButtonActionType> {
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): BaseLinkButtonActionType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): BaseLinkButtonActionType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseLinkButtonStyle.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseLinkButtonStyle.kt
index fc758ef289..f6f7dacd94 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseLinkButtonStyle.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseLinkButtonStyle.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.base.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,22 @@ enum class BaseLinkButtonStyle(
 
     SECONDARY("secondary");
 
-    class Serializer : JsonDeserializer<BaseLinkButtonStyle> {
+    class Serializer : JsonSerializer<BaseLinkButtonStyle>, JsonDeserializer<BaseLinkButtonStyle> {
+        override fun serialize(
+            src: BaseLinkButtonStyle?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): BaseLinkButtonStyle = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): BaseLinkButtonStyle {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseLinkProduct.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseLinkProduct.kt
index 3b39d7dbc4..95550dd1e9 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseLinkProduct.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseLinkProduct.kt
@@ -35,9 +35,6 @@ import kotlin.String
 /**
  * @param price no description
  * @param merchant no description
- * @param category no description
- * @param geo no description
- * @param status no description
  * @param ordersCount no description
  */
 data class BaseLinkProduct(
@@ -45,12 +42,6 @@ data class BaseLinkProduct(
     val price: MarketPrice,
     @SerializedName(value="merchant")
     val merchant: String? = null,
-    @SerializedName(value="category")
-    val category: String? = null,
-    @SerializedName(value="geo")
-    val geo: BaseGeoCoordinates? = null,
-    @SerializedName(value="status")
-    val status: BaseLinkProductStatus? = null,
     @SerializedName(value="orders_count")
     val ordersCount: Int? = null
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseLinkProductStatus.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseLinkProductStatus.kt
index bb6491a62a..2465b64264 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseLinkProductStatus.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseLinkProductStatus.kt
@@ -30,42 +30,44 @@ package com.vk.sdk.api.base.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
-import com.google.gson.annotations.SerializedName
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
-import kotlin.Int
 import kotlin.String
 
-/**
- * @param raw Raw integer representation of status
- * @param value String representation of status
- */
-data class BaseLinkProductStatus(
-    @SerializedName(value="raw")
-    val raw: Int? = null,
-    @SerializedName(value="value")
-    val value: Value? = null
+enum class BaseLinkProductStatus(
+    val value: String
 ) {
-    enum class Value(
-        val value: String
-    ) {
-        ACTIVE("active"),
+    ACTIVE("active"),
 
-        BLOCKED("blocked"),
+    BLOCKED("blocked"),
 
-        SOLD("sold"),
+    SOLD("sold"),
 
-        DELETED("deleted"),
+    DELETED("deleted"),
 
-        ARCHIVED("archived"),
+    ARCHIVED("archived");
 
-        BOOKED("booked");
+    class Serializer : JsonSerializer<BaseLinkProductStatus>,
+            JsonDeserializer<BaseLinkProductStatus> {
+        override fun serialize(
+            src: BaseLinkProductStatus?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
 
-        class Serializer : JsonDeserializer<Value> {
-            override fun deserialize(
-                json: JsonElement?,
-                typeOfT: Type?,
-                context: JsonDeserializationContext?
-            ): Value = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+        override fun deserialize(
+            json: JsonElement?,
+            typeOfT: Type?,
+            context: JsonDeserializationContext?
+        ): BaseLinkProductStatus {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseOkResponseDto.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseOkResponseDto.kt
index 4579f2754c..7882200eb5 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseOkResponseDto.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseOkResponseDto.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.base.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -38,12 +43,22 @@ enum class BaseOkResponseDto(
 ) {
     OK(1);
 
-    class Serializer : JsonDeserializer<BaseOkResponseDto> {
+    class Serializer : JsonSerializer<BaseOkResponseDto>, JsonDeserializer<BaseOkResponseDto> {
+        override fun serialize(
+            src: BaseOkResponseDto?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): BaseOkResponseDto = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): BaseOkResponseDto {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BasePropertyExists.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BasePropertyExists.kt
index 53925e5294..96d06f190e 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BasePropertyExists.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BasePropertyExists.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.base.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -38,12 +43,22 @@ enum class BasePropertyExists(
 ) {
     PROPERTY_EXISTS(1);
 
-    class Serializer : JsonDeserializer<BasePropertyExists> {
+    class Serializer : JsonSerializer<BasePropertyExists>, JsonDeserializer<BasePropertyExists> {
+        override fun serialize(
+            src: BasePropertyExists?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): BasePropertyExists = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): BasePropertyExists {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseRepostsInfo.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseRepostsInfo.kt
index 9a015edd21..ab1edd1630 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseRepostsInfo.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseRepostsInfo.kt
@@ -31,12 +31,18 @@ import com.google.gson.annotations.SerializedName
 import kotlin.Int
 
 /**
- * @param count Reposts number
+ * @param count Total reposts counter. Sum of wall and mail reposts counters
+ * @param wallCount Wall reposts counter
+ * @param mailCount Mail reposts counter
  * @param userReposted Information whether current user has reposted the post
  */
 data class BaseRepostsInfo(
     @SerializedName(value="count")
     val count: Int? = null,
+    @SerializedName(value="wall_count")
+    val wallCount: Int? = null,
+    @SerializedName(value="mail_count")
+    val mailCount: Int? = null,
     @SerializedName(value="user_reposted")
     val userReposted: Int? = null
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseSex.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseSex.kt
index d9be0b58f0..a4dce9def1 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseSex.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseSex.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.base.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,11 +47,22 @@ enum class BaseSex(
 
     MALE(2);
 
-    class Serializer : JsonDeserializer<BaseSex> {
+    class Serializer : JsonSerializer<BaseSex>, JsonDeserializer<BaseSex> {
+        override fun serialize(
+            src: BaseSex?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): BaseSex = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+        ): BaseSex {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseStickerAnimation.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseStickerAnimation.kt
index efb862a7fe..99d1aaa789 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseStickerAnimation.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseStickerAnimation.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.base.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import kotlin.String
 
@@ -50,12 +55,23 @@ data class BaseStickerAnimation(
 
         DARK("dark");
 
-        class Serializer : JsonDeserializer<Type> {
+        class Serializer : JsonSerializer<Type>, JsonDeserializer<Type> {
+            override fun serialize(
+                src: Type?,
+                typeOfSrc: java.lang.reflect.Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: java.lang.reflect.Type?,
                 context: JsonDeserializationContext?
-            ): Type = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Type {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseUserGroupFields.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseUserGroupFields.kt
index 876faf7af0..d854430fee 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseUserGroupFields.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/base/dto/BaseUserGroupFields.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.base.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -236,12 +241,22 @@ enum class BaseUserGroupFields(
 
     VK_ADMIN_STATUS("vk_admin_status");
 
-    class Serializer : JsonDeserializer<BaseUserGroupFields> {
+    class Serializer : JsonSerializer<BaseUserGroupFields>, JsonDeserializer<BaseUserGroupFields> {
+        override fun serialize(
+            src: BaseUserGroupFields?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): BaseUserGroupFields = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): BaseUserGroupFields {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/board/dto/BoardDefaultOrder.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/board/dto/BoardDefaultOrder.kt
index d10845cc9a..7e81eee627 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/board/dto/BoardDefaultOrder.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/board/dto/BoardDefaultOrder.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.board.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -44,12 +49,22 @@ enum class BoardDefaultOrder(
 
     ASC_CREATED(-2);
 
-    class Serializer : JsonDeserializer<BoardDefaultOrder> {
+    class Serializer : JsonSerializer<BoardDefaultOrder>, JsonDeserializer<BoardDefaultOrder> {
+        override fun serialize(
+            src: BoardDefaultOrder?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): BoardDefaultOrder = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): BoardDefaultOrder {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/board/dto/BoardGetCommentsSort.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/board/dto/BoardGetCommentsSort.kt
index f0de901505..6abfca248a 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/board/dto/BoardGetCommentsSort.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/board/dto/BoardGetCommentsSort.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.board.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,23 @@ enum class BoardGetCommentsSort(
 
     REVERSE_CHRONOLOGICAL("desc");
 
-    class Serializer : JsonDeserializer<BoardGetCommentsSort> {
+    class Serializer : JsonSerializer<BoardGetCommentsSort>, JsonDeserializer<BoardGetCommentsSort>
+            {
+        override fun serialize(
+            src: BoardGetCommentsSort?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): BoardGetCommentsSort = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): BoardGetCommentsSort {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/board/dto/BoardGetTopicsOrder.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/board/dto/BoardGetTopicsOrder.kt
index 01ac01f27b..b3f7c42c8d 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/board/dto/BoardGetTopicsOrder.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/board/dto/BoardGetTopicsOrder.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.board.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -46,12 +51,22 @@ enum class BoardGetTopicsOrder(
 
     AS_BY_ADMINISTRATOR(0);
 
-    class Serializer : JsonDeserializer<BoardGetTopicsOrder> {
+    class Serializer : JsonSerializer<BoardGetTopicsOrder>, JsonDeserializer<BoardGetTopicsOrder> {
+        override fun serialize(
+            src: BoardGetTopicsOrder?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): BoardGetTopicsOrder = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): BoardGetTopicsOrder {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/board/dto/BoardGetTopicsPreview.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/board/dto/BoardGetTopicsPreview.kt
index f45a12354e..9c830b2d51 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/board/dto/BoardGetTopicsPreview.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/board/dto/BoardGetTopicsPreview.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.board.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,23 @@ enum class BoardGetTopicsPreview(
 
     NONE(0);
 
-    class Serializer : JsonDeserializer<BoardGetTopicsPreview> {
+    class Serializer : JsonSerializer<BoardGetTopicsPreview>,
+            JsonDeserializer<BoardGetTopicsPreview> {
+        override fun serialize(
+            src: BoardGetTopicsPreview?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): BoardGetTopicsPreview = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): BoardGetTopicsPreview {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackConfirmationMessage.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackConfirmationMessage.kt
index 14457fef1d..e9f580d335 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackConfirmationMessage.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackConfirmationMessage.kt
@@ -42,5 +42,5 @@ data class CallbackConfirmationMessage(
     @SerializedName(value="group_id")
     val groupId: Int,
     @SerializedName(value="secret")
-    val secret: String
+    val secret: String? = null
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutMoneyWithdraw.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutMoneyWithdraw.kt
new file mode 100644
index 0000000000..600736171c
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutMoneyWithdraw.kt
@@ -0,0 +1,42 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.callback.dto
+
+import com.google.gson.annotations.SerializedName
+import kotlin.Float
+
+/**
+ * @param amount no description
+ * @param amountWithoutFee no description
+ */
+data class CallbackDonutMoneyWithdraw(
+    @SerializedName(value="amount")
+    val amount: Float,
+    @SerializedName(value="amount_without_fee")
+    val amountWithoutFee: Float
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutMoneyWithdrawError.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutMoneyWithdrawError.kt
new file mode 100644
index 0000000000..b5ddfbbec6
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutMoneyWithdrawError.kt
@@ -0,0 +1,39 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.callback.dto
+
+import com.google.gson.annotations.SerializedName
+import kotlin.String
+
+/**
+ * @param reason no description
+ */
+data class CallbackDonutMoneyWithdrawError(
+    @SerializedName(value="reason")
+    val reason: String
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutSubscriptionCancelled.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutSubscriptionCancelled.kt
new file mode 100644
index 0000000000..9fb6a3d199
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutSubscriptionCancelled.kt
@@ -0,0 +1,39 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.callback.dto
+
+import com.google.gson.annotations.SerializedName
+import kotlin.Int
+
+/**
+ * @param userId no description
+ */
+data class CallbackDonutSubscriptionCancelled(
+    @SerializedName(value="user_id")
+    val userId: Int? = null
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutSubscriptionCreate.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutSubscriptionCreate.kt
new file mode 100644
index 0000000000..17c786cc99
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutSubscriptionCreate.kt
@@ -0,0 +1,46 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.callback.dto
+
+import com.google.gson.annotations.SerializedName
+import kotlin.Float
+import kotlin.Int
+
+/**
+ * @param amount no description
+ * @param amountWithoutFee no description
+ * @param userId no description
+ */
+data class CallbackDonutSubscriptionCreate(
+    @SerializedName(value="amount")
+    val amount: Int,
+    @SerializedName(value="amount_without_fee")
+    val amountWithoutFee: Float,
+    @SerializedName(value="user_id")
+    val userId: Int? = null
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutSubscriptionExpired.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutSubscriptionExpired.kt
new file mode 100644
index 0000000000..e12174231a
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutSubscriptionExpired.kt
@@ -0,0 +1,39 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.callback.dto
+
+import com.google.gson.annotations.SerializedName
+import kotlin.Int
+
+/**
+ * @param userId no description
+ */
+data class CallbackDonutSubscriptionExpired(
+    @SerializedName(value="user_id")
+    val userId: Int? = null
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutSubscriptionPriceChanged.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutSubscriptionPriceChanged.kt
new file mode 100644
index 0000000000..7df17e9404
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutSubscriptionPriceChanged.kt
@@ -0,0 +1,52 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.callback.dto
+
+import com.google.gson.annotations.SerializedName
+import kotlin.Float
+import kotlin.Int
+
+/**
+ * @param amountOld no description
+ * @param amountNew no description
+ * @param userId no description
+ * @param amountDiff no description
+ * @param amountDiffWithoutFee no description
+ */
+data class CallbackDonutSubscriptionPriceChanged(
+    @SerializedName(value="amount_old")
+    val amountOld: Int,
+    @SerializedName(value="amount_new")
+    val amountNew: Int,
+    @SerializedName(value="user_id")
+    val userId: Int? = null,
+    @SerializedName(value="amount_diff")
+    val amountDiff: Float? = null,
+    @SerializedName(value="amount_diff_without_fee")
+    val amountDiffWithoutFee: Float? = null
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutSubscriptionProlonged.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutSubscriptionProlonged.kt
new file mode 100644
index 0000000000..6e40d9226d
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackDonutSubscriptionProlonged.kt
@@ -0,0 +1,46 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.callback.dto
+
+import com.google.gson.annotations.SerializedName
+import kotlin.Float
+import kotlin.Int
+
+/**
+ * @param amount no description
+ * @param amountWithoutFee no description
+ * @param userId no description
+ */
+data class CallbackDonutSubscriptionProlonged(
+    @SerializedName(value="amount")
+    val amount: Int,
+    @SerializedName(value="amount_without_fee")
+    val amountWithoutFee: Float,
+    @SerializedName(value="user_id")
+    val userId: Int? = null
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackGroupJoinType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackGroupJoinType.kt
index 07857d3d6a..3cb4129873 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackGroupJoinType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackGroupJoinType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.callback.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -46,12 +51,23 @@ enum class CallbackGroupJoinType(
 
     REQUEST("request");
 
-    class Serializer : JsonDeserializer<CallbackGroupJoinType> {
+    class Serializer : JsonSerializer<CallbackGroupJoinType>,
+            JsonDeserializer<CallbackGroupJoinType> {
+        override fun serialize(
+            src: CallbackGroupJoinType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): CallbackGroupJoinType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): CallbackGroupJoinType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackGroupMarket.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackGroupMarket.kt
index 0fa45c1625..bb124f30d4 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackGroupMarket.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackGroupMarket.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.callback.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -40,12 +45,22 @@ enum class CallbackGroupMarket(
 
     OPEN(1);
 
-    class Serializer : JsonDeserializer<CallbackGroupMarket> {
+    class Serializer : JsonSerializer<CallbackGroupMarket>, JsonDeserializer<CallbackGroupMarket> {
+        override fun serialize(
+            src: CallbackGroupMarket?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): CallbackGroupMarket = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): CallbackGroupMarket {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackGroupOfficerRole.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackGroupOfficerRole.kt
index 9b4fdb137f..98ad2d0ebc 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackGroupOfficerRole.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackGroupOfficerRole.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.callback.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -44,12 +49,23 @@ enum class CallbackGroupOfficerRole(
 
     ADMINISTRATOR(3);
 
-    class Serializer : JsonDeserializer<CallbackGroupOfficerRole> {
+    class Serializer : JsonSerializer<CallbackGroupOfficerRole>,
+            JsonDeserializer<CallbackGroupOfficerRole> {
+        override fun serialize(
+            src: CallbackGroupOfficerRole?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): CallbackGroupOfficerRole = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): CallbackGroupOfficerRole {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackLikeAddRemove.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackLikeAddRemove.kt
index 14d1e72834..59937e5527 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackLikeAddRemove.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackLikeAddRemove.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.callback.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import java.lang.reflect.Type
 import kotlin.Int
@@ -80,13 +85,23 @@ data class CallbackLikeAddRemove(
 
         MARKET_COMMENT("market_comment");
 
-        class Serializer : JsonDeserializer<ObjectType> {
+        class Serializer : JsonSerializer<ObjectType>, JsonDeserializer<ObjectType> {
+            override fun serialize(
+                src: ObjectType?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): ObjectType = values().first { it.value.toString() ==
-                    json!!.asJsonPrimitive.toString() }
+            ): ObjectType {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackMessageType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackMessageType.kt
index b0fb72d66a..3c494c1089 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackMessageType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/callback/dto/CallbackMessageType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.callback.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -98,12 +103,22 @@ enum class CallbackMessageType(
 
     MESSAGE_EVENT("message_event");
 
-    class Serializer : JsonDeserializer<CallbackMessageType> {
+    class Serializer : JsonSerializer<CallbackMessageType>, JsonDeserializer<CallbackMessageType> {
+        override fun serialize(
+            src: CallbackMessageType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): CallbackMessageType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): CallbackMessageType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/docs/dto/DocsDocAttachmentType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/docs/dto/DocsDocAttachmentType.kt
index 53a981413e..3c54b4e6df 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/docs/dto/DocsDocAttachmentType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/docs/dto/DocsDocAttachmentType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.docs.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,23 @@ enum class DocsDocAttachmentType(
 
     AUDIO_MESSAGE("audio_message");
 
-    class Serializer : JsonDeserializer<DocsDocAttachmentType> {
+    class Serializer : JsonSerializer<DocsDocAttachmentType>,
+            JsonDeserializer<DocsDocAttachmentType> {
+        override fun serialize(
+            src: DocsDocAttachmentType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): DocsDocAttachmentType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): DocsDocAttachmentType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/docs/dto/DocsGetMessagesUploadServerType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/docs/dto/DocsGetMessagesUploadServerType.kt
index 149b75f665..53f7d72232 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/docs/dto/DocsGetMessagesUploadServerType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/docs/dto/DocsGetMessagesUploadServerType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.docs.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,23 @@ enum class DocsGetMessagesUploadServerType(
 
     GRAFFITI("graffiti");
 
-    class Serializer : JsonDeserializer<DocsGetMessagesUploadServerType> {
+    class Serializer : JsonSerializer<DocsGetMessagesUploadServerType>,
+            JsonDeserializer<DocsGetMessagesUploadServerType> {
+        override fun serialize(
+            src: DocsGetMessagesUploadServerType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): DocsGetMessagesUploadServerType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): DocsGetMessagesUploadServerType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/docs/dto/DocsGetType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/docs/dto/DocsGetType.kt
index 28ba697c42..4bd68a587b 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/docs/dto/DocsGetType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/docs/dto/DocsGetType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.docs.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -54,11 +59,22 @@ enum class DocsGetType(
 
     EIGHT_(8);
 
-    class Serializer : JsonDeserializer<DocsGetType> {
+    class Serializer : JsonSerializer<DocsGetType>, JsonDeserializer<DocsGetType> {
+        override fun serialize(
+            src: DocsGetType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): DocsGetType = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+        ): DocsGetType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/docs/methods/DocsAdd.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/docs/methods/DocsAdd.kt
index ee55a76fbf..755f800cd7 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/docs/methods/DocsAdd.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/docs/methods/DocsAdd.kt
@@ -29,7 +29,6 @@ package com.vk.sdk.api.docs.methods
 
 import com.vk.sdk.api.ApiRequestBase
 import com.vk.sdk.api.GsonHolder
-import com.vk.sdk.api.docs.dto.DocsAddResponseDto
 import com.vk.sdk.api.docs.responses.DocsAddResponse
 import kotlin.Int
 import kotlin.String
@@ -47,7 +46,7 @@ class DocsAdd(
     private val ownerId: Int,
     private val docId: Int,
     private val accessKey: String? = null
-) : ApiRequestBase<DocsAddResponseDto>(methodName = "docs.add") {
+) : ApiRequestBase<Int>(methodName = "docs.add") {
     init {
         addParam("owner_id", ownerId)
         addParam("doc_id", docId)
@@ -56,6 +55,6 @@ class DocsAdd(
         }
     }
 
-    override fun parse(r: JSONObject): DocsAddResponseDto = GsonHolder.gson.fromJson(r.toString(),
+    override fun parse(r: JSONObject): Int = GsonHolder.gson.fromJson(r.toString(),
             DocsAddResponse::class.java).response
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/docs/responses/DocsAddResponse.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/docs/responses/DocsAddResponse.kt
index f11c3fa527..313f8821a8 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/docs/responses/DocsAddResponse.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/docs/responses/DocsAddResponse.kt
@@ -28,12 +28,12 @@
 package com.vk.sdk.api.docs.responses
 
 import com.google.gson.annotations.SerializedName
-import com.vk.sdk.api.docs.dto.DocsAddResponseDto
+import kotlin.Int
 
 /**
- * @param response no description
+ * @param response Document ID
  */
 data class DocsAddResponse(
     @SerializedName(value="response")
-    val response: DocsAddResponseDto
+    val response: Int
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/dto/DonutDonatorSubscriptionInfo.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/dto/DonutDonatorSubscriptionInfo.kt
new file mode 100644
index 0000000000..bff8566506
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/dto/DonutDonatorSubscriptionInfo.kt
@@ -0,0 +1,85 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.donut.dto
+
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
+import com.google.gson.annotations.SerializedName
+import java.lang.reflect.Type
+import kotlin.Int
+import kotlin.String
+
+/**
+ * @param ownerId no description
+ * @param nextPaymentDate no description
+ * @param amount no description
+ * @param status no description
+ */
+data class DonutDonatorSubscriptionInfo(
+    @SerializedName(value="owner_id")
+    val ownerId: Int,
+    @SerializedName(value="next_payment_date")
+    val nextPaymentDate: Int,
+    @SerializedName(value="amount")
+    val amount: Int,
+    @SerializedName(value="status")
+    val status: Status
+) {
+    enum class Status(
+        val value: String
+    ) {
+        ACTIVE("active"),
+
+        EXPIRING("expiring");
+
+        class Serializer : JsonSerializer<Status>, JsonDeserializer<Status> {
+            override fun serialize(
+                src: Status?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
+            override fun deserialize(
+                json: JsonElement?,
+                typeOfT: Type?,
+                context: JsonDeserializationContext?
+            ): Status {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
+        }
+    }
+}
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/dto/DonutGetSubscriptionsResponseDto.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/dto/DonutGetSubscriptionsResponseDto.kt
new file mode 100644
index 0000000000..da9a5e8ea5
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/dto/DonutGetSubscriptionsResponseDto.kt
@@ -0,0 +1,51 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.donut.dto
+
+import com.google.gson.annotations.SerializedName
+import com.vk.sdk.api.groups.dto.GroupsGroupFull
+import com.vk.sdk.api.users.dto.UsersUserFull
+import kotlin.Int
+import kotlin.collections.List
+
+/**
+ * @param subscriptions no description
+ * @param count no description
+ * @param profiles no description
+ * @param groups no description
+ */
+data class DonutGetSubscriptionsResponseDto(
+    @SerializedName(value="subscriptions")
+    val subscriptions: List<DonutDonatorSubscriptionInfo>,
+    @SerializedName(value="count")
+    val count: Int? = null,
+    @SerializedName(value="profiles")
+    val profiles: List<UsersUserFull>? = null,
+    @SerializedName(value="groups")
+    val groups: List<GroupsGroupFull>? = null
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/methods/DonutGetFriends.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/methods/DonutGetFriends.kt
new file mode 100644
index 0000000000..14380286db
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/methods/DonutGetFriends.kt
@@ -0,0 +1,67 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.donut.methods
+
+import com.vk.sdk.api.ApiRequestBase
+import com.vk.sdk.api.GsonHolder
+import com.vk.sdk.api.groups.dto.GroupsGetMembersFieldsResponseDto
+import com.vk.sdk.api.groups.responses.GroupsGetMembersFieldsResponse
+import kotlin.Int
+import kotlin.String
+import kotlin.collections.List
+import org.json.JSONObject
+
+/**
+ * @param ownerId  
+ * @param offset  default 0 minimum 0
+ * @param count  default 10 minimum 0 maximum 100
+ * @param fields  
+ */
+class DonutGetFriends(
+    private val ownerId: Int,
+    private val offset: Int? = null,
+    private val count: Int? = null,
+    private val fields: List<String>? = null
+) : ApiRequestBase<GroupsGetMembersFieldsResponseDto>(methodName = "donut.getFriends") {
+    init {
+        addParam("owner_id", ownerId)
+        offset?.let { value ->
+            addParam("offset", value)
+        }
+        count?.let { value ->
+            addParam("count", value)
+        }
+        fields?.let { value ->
+            addParam("fields", value)
+        }
+    }
+
+    override fun parse(r: JSONObject): GroupsGetMembersFieldsResponseDto =
+            GsonHolder.gson.fromJson(r.toString(),
+            GroupsGetMembersFieldsResponse::class.java).response
+}
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/methods/DonutGetSubscription.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/methods/DonutGetSubscription.kt
new file mode 100644
index 0000000000..deab8bd9bf
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/methods/DonutGetSubscription.kt
@@ -0,0 +1,50 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.donut.methods
+
+import com.vk.sdk.api.ApiRequestBase
+import com.vk.sdk.api.GsonHolder
+import com.vk.sdk.api.donut.dto.DonutDonatorSubscriptionInfo
+import com.vk.sdk.api.donut.responses.DonutGetSubscriptionResponse
+import kotlin.Int
+import org.json.JSONObject
+
+/**
+ * @param ownerId  
+ */
+class DonutGetSubscription(
+    private val ownerId: Int
+) : ApiRequestBase<DonutDonatorSubscriptionInfo>(methodName = "donut.getSubscription") {
+    init {
+        addParam("owner_id", ownerId)
+    }
+
+    override fun parse(r: JSONObject): DonutDonatorSubscriptionInfo =
+            GsonHolder.gson.fromJson(r.toString(),
+            DonutGetSubscriptionResponse::class.java).response
+}
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/methods/DonutGetSubscriptions.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/methods/DonutGetSubscriptions.kt
new file mode 100644
index 0000000000..3885904337
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/methods/DonutGetSubscriptions.kt
@@ -0,0 +1,65 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.donut.methods
+
+import com.vk.sdk.api.ApiRequestBase
+import com.vk.sdk.api.GsonHolder
+import com.vk.sdk.api.base.dto.BaseUserGroupFields
+import com.vk.sdk.api.donut.dto.DonutGetSubscriptionsResponseDto
+import com.vk.sdk.api.donut.responses.DonutGetSubscriptionsResponse
+import kotlin.Int
+import kotlin.collections.List
+import org.json.JSONObject
+
+/**
+ * Returns a list of user's VK Donut subscriptions.
+ * @param fields  
+ * @param offset  default 0 minimum 0
+ * @param count  default 10 minimum 0 maximum 100
+ */
+class DonutGetSubscriptions(
+    private val fields: List<BaseUserGroupFields>? = null,
+    private val offset: Int? = null,
+    private val count: Int? = null
+) : ApiRequestBase<DonutGetSubscriptionsResponseDto>(methodName = "donut.getSubscriptions") {
+    init {
+        fields?.let { value ->
+            addParam("fields", value)
+        }
+        offset?.let { value ->
+            addParam("offset", value)
+        }
+        count?.let { value ->
+            addParam("count", value)
+        }
+    }
+
+    override fun parse(r: JSONObject): DonutGetSubscriptionsResponseDto =
+            GsonHolder.gson.fromJson(r.toString(),
+            DonutGetSubscriptionsResponse::class.java).response
+}
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/methods/DonutIsDon.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/methods/DonutIsDon.kt
new file mode 100644
index 0000000000..a78d515e92
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/methods/DonutIsDon.kt
@@ -0,0 +1,49 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.donut.methods
+
+import com.vk.sdk.api.ApiRequestBase
+import com.vk.sdk.api.GsonHolder
+import com.vk.sdk.api.base.dto.BaseBoolInt
+import com.vk.sdk.api.base.responses.BaseBoolResponse
+import kotlin.Int
+import org.json.JSONObject
+
+/**
+ * @param ownerId  
+ */
+class DonutIsDon(
+    private val ownerId: Int
+) : ApiRequestBase<BaseBoolInt>(methodName = "donut.isDon") {
+    init {
+        addParam("owner_id", ownerId)
+    }
+
+    override fun parse(r: JSONObject): BaseBoolInt = GsonHolder.gson.fromJson(r.toString(),
+            BaseBoolResponse::class.java).response
+}
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/responses/DonutGetSubscriptionResponse.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/responses/DonutGetSubscriptionResponse.kt
new file mode 100644
index 0000000000..ded616e386
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/responses/DonutGetSubscriptionResponse.kt
@@ -0,0 +1,39 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.donut.responses
+
+import com.google.gson.annotations.SerializedName
+import com.vk.sdk.api.donut.dto.DonutDonatorSubscriptionInfo
+
+/**
+ * @param response no description
+ */
+data class DonutGetSubscriptionResponse(
+    @SerializedName(value="response")
+    val response: DonutDonatorSubscriptionInfo
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/responses/DonutGetSubscriptionsResponse.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/responses/DonutGetSubscriptionsResponse.kt
new file mode 100644
index 0000000000..fa87559182
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/donut/responses/DonutGetSubscriptionsResponse.kt
@@ -0,0 +1,39 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.donut.responses
+
+import com.google.gson.annotations.SerializedName
+import com.vk.sdk.api.donut.dto.DonutGetSubscriptionsResponseDto
+
+/**
+ * @param response no description
+ */
+data class DonutGetSubscriptionsResponse(
+    @SerializedName(value="response")
+    val response: DonutGetSubscriptionsResponseDto
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FaveAddTagPosition.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FaveAddTagPosition.kt
index 7d08d608d7..2126c8d012 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FaveAddTagPosition.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FaveAddTagPosition.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.fave.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,22 @@ enum class FaveAddTagPosition(
 
     FRONT("front");
 
-    class Serializer : JsonDeserializer<FaveAddTagPosition> {
+    class Serializer : JsonSerializer<FaveAddTagPosition>, JsonDeserializer<FaveAddTagPosition> {
+        override fun serialize(
+            src: FaveAddTagPosition?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): FaveAddTagPosition = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): FaveAddTagPosition {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FaveBookmarkType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FaveBookmarkType.kt
index d8a39f5bff..da410379e3 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FaveBookmarkType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FaveBookmarkType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.fave.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -50,12 +55,22 @@ enum class FaveBookmarkType(
 
     NARRATIVE("narrative");
 
-    class Serializer : JsonDeserializer<FaveBookmarkType> {
+    class Serializer : JsonSerializer<FaveBookmarkType>, JsonDeserializer<FaveBookmarkType> {
+        override fun serialize(
+            src: FaveBookmarkType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): FaveBookmarkType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): FaveBookmarkType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FaveGetItemType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FaveGetItemType.kt
index a22dea5dbc..373d6ce01f 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FaveGetItemType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FaveGetItemType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.fave.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -54,12 +59,22 @@ enum class FaveGetItemType(
 
     VIDEO("video");
 
-    class Serializer : JsonDeserializer<FaveGetItemType> {
+    class Serializer : JsonSerializer<FaveGetItemType>, JsonDeserializer<FaveGetItemType> {
+        override fun serialize(
+            src: FaveGetItemType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): FaveGetItemType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): FaveGetItemType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FaveGetPagesType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FaveGetPagesType.kt
index 0beee666fe..89adc1ea6d 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FaveGetPagesType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FaveGetPagesType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.fave.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,22 @@ enum class FaveGetPagesType(
 
     USERS("users");
 
-    class Serializer : JsonDeserializer<FaveGetPagesType> {
+    class Serializer : JsonSerializer<FaveGetPagesType>, JsonDeserializer<FaveGetPagesType> {
+        override fun serialize(
+            src: FaveGetPagesType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): FaveGetPagesType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): FaveGetPagesType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FavePageType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FavePageType.kt
index a18df28773..1c364df150 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FavePageType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FavePageType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.fave.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,22 @@ enum class FavePageType(
 
     HINTS("hints");
 
-    class Serializer : JsonDeserializer<FavePageType> {
+    class Serializer : JsonSerializer<FavePageType>, JsonDeserializer<FavePageType> {
+        override fun serialize(
+            src: FavePageType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): FavePageType = values().first { it.value.toString() == json!!.asJsonPrimitive.toString()
-                }
+        ): FavePageType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FaveSetTagsItemType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FaveSetTagsItemType.kt
index 56cf4b66b4..a4baecfc97 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FaveSetTagsItemType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/fave/dto/FaveSetTagsItemType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.fave.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -54,12 +59,22 @@ enum class FaveSetTagsItemType(
 
     VIDEO("video");
 
-    class Serializer : JsonDeserializer<FaveSetTagsItemType> {
+    class Serializer : JsonSerializer<FaveSetTagsItemType>, JsonDeserializer<FaveSetTagsItemType> {
+        override fun serialize(
+            src: FaveSetTagsItemType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): FaveSetTagsItemType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): FaveSetTagsItemType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsAddResponseDto.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsAddResponseDto.kt
index e32a55aee2..64ba699f29 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsAddResponseDto.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsAddResponseDto.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.friends.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,23 @@ enum class FriendsAddResponseDto(
 
     RESEND(4);
 
-    class Serializer : JsonDeserializer<FriendsAddResponseDto> {
+    class Serializer : JsonSerializer<FriendsAddResponseDto>,
+            JsonDeserializer<FriendsAddResponseDto> {
+        override fun serialize(
+            src: FriendsAddResponseDto?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): FriendsAddResponseDto = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): FriendsAddResponseDto {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsDeleteResponseDto.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsDeleteResponseDto.kt
index de7443227a..b9ca3c1daf 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsDeleteResponseDto.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsDeleteResponseDto.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.friends.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import java.lang.reflect.Type
 import kotlin.Int
@@ -58,13 +63,23 @@ data class FriendsDeleteResponseDto(
     ) {
         OK(1);
 
-        class Serializer : JsonDeserializer<FriendDeleted> {
+        class Serializer : JsonSerializer<FriendDeleted>, JsonDeserializer<FriendDeleted> {
+            override fun serialize(
+                src: FriendDeleted?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): FriendDeleted = values().first { it.value.toString() ==
-                    json!!.asJsonPrimitive.toString() }
+            ): FriendDeleted {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 
@@ -73,13 +88,23 @@ data class FriendsDeleteResponseDto(
     ) {
         OK(1);
 
-        class Serializer : JsonDeserializer<InRequestDeleted> {
+        class Serializer : JsonSerializer<InRequestDeleted>, JsonDeserializer<InRequestDeleted> {
+            override fun serialize(
+                src: InRequestDeleted?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): InRequestDeleted = values().first { it.value.toString() ==
-                    json!!.asJsonPrimitive.toString() }
+            ): InRequestDeleted {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 
@@ -88,13 +113,23 @@ data class FriendsDeleteResponseDto(
     ) {
         OK(1);
 
-        class Serializer : JsonDeserializer<SuggestionDeleted> {
+        class Serializer : JsonSerializer<SuggestionDeleted>, JsonDeserializer<SuggestionDeleted> {
+            override fun serialize(
+                src: SuggestionDeleted?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): SuggestionDeleted = values().first { it.value.toString() ==
-                    json!!.asJsonPrimitive.toString() }
+            ): SuggestionDeleted {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 
@@ -103,13 +138,23 @@ data class FriendsDeleteResponseDto(
     ) {
         OK(1);
 
-        class Serializer : JsonDeserializer<OutRequestDeleted> {
+        class Serializer : JsonSerializer<OutRequestDeleted>, JsonDeserializer<OutRequestDeleted> {
+            override fun serialize(
+                src: OutRequestDeleted?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): OutRequestDeleted = values().first { it.value.toString() ==
-                    json!!.asJsonPrimitive.toString() }
+            ): OutRequestDeleted {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsFriendStatusStatus.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsFriendStatusStatus.kt
index 1478e2e1fb..dd7be2352a 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsFriendStatusStatus.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsFriendStatusStatus.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.friends.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -44,12 +49,23 @@ enum class FriendsFriendStatusStatus(
 
     IS_FRIEND(3);
 
-    class Serializer : JsonDeserializer<FriendsFriendStatusStatus> {
+    class Serializer : JsonSerializer<FriendsFriendStatusStatus>,
+            JsonDeserializer<FriendsFriendStatusStatus> {
+        override fun serialize(
+            src: FriendsFriendStatusStatus?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): FriendsFriendStatusStatus = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): FriendsFriendStatusStatus {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsGetNameCase.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsGetNameCase.kt
index 58654d439e..723e93361a 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsGetNameCase.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsGetNameCase.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.friends.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -48,12 +53,22 @@ enum class FriendsGetNameCase(
 
     PREPOSITIONAL("abl");
 
-    class Serializer : JsonDeserializer<FriendsGetNameCase> {
+    class Serializer : JsonSerializer<FriendsGetNameCase>, JsonDeserializer<FriendsGetNameCase> {
+        override fun serialize(
+            src: FriendsGetNameCase?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): FriendsGetNameCase = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): FriendsGetNameCase {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsGetOrder.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsGetOrder.kt
index 86a6788ee8..a17b1d07c3 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsGetOrder.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsGetOrder.kt
@@ -30,22 +30,43 @@ package com.vk.sdk.api.friends.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
 enum class FriendsGetOrder(
     val value: String
 ) {
+    HINTS("hints"),
+
+    RANDOM("random"),
+
+    MOBILE("mobile"),
+
     NAME("name"),
 
-    HINTS("hints");
+    SMART("smart");
+
+    class Serializer : JsonSerializer<FriendsGetOrder>, JsonDeserializer<FriendsGetOrder> {
+        override fun serialize(
+            src: FriendsGetOrder?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
 
-    class Serializer : JsonDeserializer<FriendsGetOrder> {
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): FriendsGetOrder = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): FriendsGetOrder {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsGetRequestsSort.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsGetRequestsSort.kt
index c2be3e6357..627983ebc0 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsGetRequestsSort.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsGetRequestsSort.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.friends.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -38,14 +43,27 @@ enum class FriendsGetRequestsSort(
 ) {
     DATE(0),
 
-    MUTUAL(1);
+    MUTUAL(1),
+
+    ROTATE(2);
+
+    class Serializer : JsonSerializer<FriendsGetRequestsSort>,
+            JsonDeserializer<FriendsGetRequestsSort> {
+        override fun serialize(
+            src: FriendsGetRequestsSort?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
 
-    class Serializer : JsonDeserializer<FriendsGetRequestsSort> {
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): FriendsGetRequestsSort = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): FriendsGetRequestsSort {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsGetSuggestionsFilter.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsGetSuggestionsFilter.kt
index 9550cc533f..bbe63a9019 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsGetSuggestionsFilter.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsGetSuggestionsFilter.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.friends.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,23 @@ enum class FriendsGetSuggestionsFilter(
 
     MUTUAL_CONTACTS("mutual_contacts");
 
-    class Serializer : JsonDeserializer<FriendsGetSuggestionsFilter> {
+    class Serializer : JsonSerializer<FriendsGetSuggestionsFilter>,
+            JsonDeserializer<FriendsGetSuggestionsFilter> {
+        override fun serialize(
+            src: FriendsGetSuggestionsFilter?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): FriendsGetSuggestionsFilter = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): FriendsGetSuggestionsFilter {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsGetSuggestionsNameCase.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsGetSuggestionsNameCase.kt
index ede9a26ef6..19f4f062a5 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsGetSuggestionsNameCase.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsGetSuggestionsNameCase.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.friends.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -48,12 +53,23 @@ enum class FriendsGetSuggestionsNameCase(
 
     PREPOSITIONAL("abl");
 
-    class Serializer : JsonDeserializer<FriendsGetSuggestionsNameCase> {
+    class Serializer : JsonSerializer<FriendsGetSuggestionsNameCase>,
+            JsonDeserializer<FriendsGetSuggestionsNameCase> {
+        override fun serialize(
+            src: FriendsGetSuggestionsNameCase?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): FriendsGetSuggestionsNameCase = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): FriendsGetSuggestionsNameCase {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsSearchNameCase.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsSearchNameCase.kt
index 00b223ecd3..faa23ce9c7 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsSearchNameCase.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsSearchNameCase.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.friends.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -48,12 +53,23 @@ enum class FriendsSearchNameCase(
 
     PREPOSITIONAL("abl");
 
-    class Serializer : JsonDeserializer<FriendsSearchNameCase> {
+    class Serializer : JsonSerializer<FriendsSearchNameCase>,
+            JsonDeserializer<FriendsSearchNameCase> {
+        override fun serialize(
+            src: FriendsSearchNameCase?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): FriendsSearchNameCase = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): FriendsSearchNameCase {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsUserXtrLists.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsUserXtrLists.kt
index d88a7a691c..c26fb59929 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsUserXtrLists.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsUserXtrLists.kt
@@ -27,6 +27,14 @@
 // *********************************************************************
 package com.vk.sdk.api.friends.dto
 
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import com.vk.sdk.api.audio.dto.AudioAudio
 import com.vk.sdk.api.base.dto.BaseBoolInt
@@ -35,6 +43,7 @@ import com.vk.sdk.api.base.dto.BaseCountry
 import com.vk.sdk.api.base.dto.BaseCropPhoto
 import com.vk.sdk.api.base.dto.BaseSex
 import com.vk.sdk.api.owner.dto.OwnerState
+import com.vk.sdk.api.photos.dto.PhotosPhoto
 import com.vk.sdk.api.users.dto.UsersCareer
 import com.vk.sdk.api.users.dto.UsersExports
 import com.vk.sdk.api.users.dto.UsersLastSeen
@@ -45,9 +54,14 @@ import com.vk.sdk.api.users.dto.UsersPersonal
 import com.vk.sdk.api.users.dto.UsersRelative
 import com.vk.sdk.api.users.dto.UsersSchool
 import com.vk.sdk.api.users.dto.UsersUniversity
+import com.vk.sdk.api.users.dto.UsersUserCounters
 import com.vk.sdk.api.users.dto.UsersUserMin
 import com.vk.sdk.api.users.dto.UsersUserRelation
+import com.vk.sdk.api.users.dto.UsersUserType
+import com.vk.sdk.api.video.dto.VideoLiveInfo
+import java.lang.reflect.Type
 import kotlin.Boolean
+import kotlin.Float
 import kotlin.Int
 import kotlin.String
 import kotlin.collections.List
@@ -68,6 +82,7 @@ import kotlin.collections.List
  * @param lastNameAbl User's last name in prepositional case
  * @param nickname User nickname
  * @param maidenName User maiden name
+ * @param contactName User contact name
  * @param domain Domain name of the user's page
  * @param bdate User's date of birth
  * @param city no description
@@ -87,6 +102,38 @@ import kotlin.collections.List
  * @param canPost Information whether current user can post on the user's wall
  * @param canSeeAllPosts Information whether current user can see other users' audio on the wall
  * @param canSeeAudio Information whether current user can see the user's audio
+ * @param type no description
+ * @param email no description
+ * @param skype no description
+ * @param facebook no description
+ * @param facebookName no description
+ * @param twitter no description
+ * @param livejournal no description
+ * @param instagram no description
+ * @param test no description
+ * @param videoLive no description
+ * @param isVideoLiveNotificationsBlocked no description
+ * @param isService no description
+ * @param serviceDescription no description
+ * @param photo no description
+ * @param photoBig no description
+ * @param photo400 no description
+ * @param photoMaxSize no description
+ * @param language no description
+ * @param storiesArchiveCount no description
+ * @param wallDefault no description
+ * @param canCall Information whether current user can call
+ * @param canSeeWishes Information whether current user can see the user's wishes
+ * @param canSeeGifts Information whether current user can see the user's gifts
+ * @param interests no description
+ * @param books no description
+ * @param tv no description
+ * @param quotes no description
+ * @param about no description
+ * @param games no description
+ * @param movies no description
+ * @param activities no description
+ * @param music no description
  * @param canWritePrivateMessage Information whether current user can write private message
  * @param canSendFriendRequest Information whether current user can send a friend request
  * @param canBeInvitedGroup Information whether current user can be invited to the community
@@ -102,6 +149,7 @@ import kotlin.collections.List
  * @param followersCount Number of user's followers
  * @param videoLiveLevel User level in live streams achievements
  * @param videoLiveCount Number of user's live streams
+ * @param clipsCount Number of user's clips
  * @param blacklisted Information whether current user is in the requested user's blacklist.
  * @param blacklistedByMe Information whether the requested user is in current user's blacklist
  * @param isFavorite Information whether the requested user is in faves of current user
@@ -113,6 +161,7 @@ import kotlin.collections.List
  * @param military no description
  * @param university University ID
  * @param universityName University name
+ * @param universityGroupId no description
  * @param faculty Faculty ID
  * @param facultyName Faculty name
  * @param graduation Graduation year
@@ -128,6 +177,11 @@ import kotlin.collections.List
  * @param isSubscribedPodcasts Information whether current user is subscribed to podcasts
  * @param canSubscribePodcasts Owner in whitelist or not
  * @param canSubscribePosts Can subscribe to wall
+ * @param counters no description
+ * @param accessKey no description
+ * @param canUploadDoc no description
+ * @param hash no description
+ * @param hasEmail no description
  * @param sex User sex
  * @param screenName Domain name of the user's page
  * @param photo50 URL of square photo of the user with 50 pixels in width
@@ -179,6 +233,8 @@ data class FriendsUserXtrLists(
     val nickname: String? = null,
     @SerializedName(value="maiden_name")
     val maidenName: String? = null,
+    @SerializedName(value="contact_name")
+    val contactName: String? = null,
     @SerializedName(value="domain")
     val domain: String? = null,
     @SerializedName(value="bdate")
@@ -188,7 +244,7 @@ data class FriendsUserXtrLists(
     @SerializedName(value="country")
     val country: BaseCountry? = null,
     @SerializedName(value="timezone")
-    val timezone: Int? = null,
+    val timezone: Float? = null,
     @SerializedName(value="owner_state")
     val ownerState: OwnerState? = null,
     @SerializedName(value="photo_200")
@@ -217,6 +273,70 @@ data class FriendsUserXtrLists(
     val canSeeAllPosts: BaseBoolInt? = null,
     @SerializedName(value="can_see_audio")
     val canSeeAudio: BaseBoolInt? = null,
+    @SerializedName(value="type")
+    val type: UsersUserType? = null,
+    @SerializedName(value="email")
+    val email: String? = null,
+    @SerializedName(value="skype")
+    val skype: String? = null,
+    @SerializedName(value="facebook")
+    val facebook: String? = null,
+    @SerializedName(value="facebook_name")
+    val facebookName: String? = null,
+    @SerializedName(value="twitter")
+    val twitter: String? = null,
+    @SerializedName(value="livejournal")
+    val livejournal: String? = null,
+    @SerializedName(value="instagram")
+    val instagram: String? = null,
+    @SerializedName(value="test")
+    val test: BaseBoolInt? = null,
+    @SerializedName(value="video_live")
+    val videoLive: VideoLiveInfo? = null,
+    @SerializedName(value="is_video_live_notifications_blocked")
+    val isVideoLiveNotificationsBlocked: BaseBoolInt? = null,
+    @SerializedName(value="is_service")
+    val isService: Boolean? = null,
+    @SerializedName(value="service_description")
+    val serviceDescription: String? = null,
+    @SerializedName(value="photo")
+    val photo: String? = null,
+    @SerializedName(value="photo_big")
+    val photoBig: String? = null,
+    @SerializedName(value="photo_400")
+    val photo400: String? = null,
+    @SerializedName(value="photo_max_size")
+    val photoMaxSize: PhotosPhoto? = null,
+    @SerializedName(value="language")
+    val language: String? = null,
+    @SerializedName(value="stories_archive_count")
+    val storiesArchiveCount: Int? = null,
+    @SerializedName(value="wall_default")
+    val wallDefault: WallDefault? = null,
+    @SerializedName(value="can_call")
+    val canCall: Boolean? = null,
+    @SerializedName(value="can_see_wishes")
+    val canSeeWishes: Boolean? = null,
+    @SerializedName(value="can_see_gifts")
+    val canSeeGifts: BaseBoolInt? = null,
+    @SerializedName(value="interests")
+    val interests: String? = null,
+    @SerializedName(value="books")
+    val books: String? = null,
+    @SerializedName(value="tv")
+    val tv: String? = null,
+    @SerializedName(value="quotes")
+    val quotes: String? = null,
+    @SerializedName(value="about")
+    val about: String? = null,
+    @SerializedName(value="games")
+    val games: String? = null,
+    @SerializedName(value="movies")
+    val movies: String? = null,
+    @SerializedName(value="activities")
+    val activities: String? = null,
+    @SerializedName(value="music")
+    val music: String? = null,
     @SerializedName(value="can_write_private_message")
     val canWritePrivateMessage: BaseBoolInt? = null,
     @SerializedName(value="can_send_friend_request")
@@ -247,6 +367,8 @@ data class FriendsUserXtrLists(
     val videoLiveLevel: Int? = null,
     @SerializedName(value="video_live_count")
     val videoLiveCount: Int? = null,
+    @SerializedName(value="clips_count")
+    val clipsCount: Int? = null,
     @SerializedName(value="blacklisted")
     val blacklisted: BaseBoolInt? = null,
     @SerializedName(value="blacklisted_by_me")
@@ -267,6 +389,8 @@ data class FriendsUserXtrLists(
     val university: Int? = null,
     @SerializedName(value="university_name")
     val universityName: String? = null,
+    @SerializedName(value="university_group_id")
+    val universityGroupId: Int? = null,
     @SerializedName(value="faculty")
     val faculty: Int? = null,
     @SerializedName(value="faculty_name")
@@ -297,6 +421,16 @@ data class FriendsUserXtrLists(
     val canSubscribePodcasts: Boolean? = null,
     @SerializedName(value="can_subscribe_posts")
     val canSubscribePosts: Boolean? = null,
+    @SerializedName(value="counters")
+    val counters: UsersUserCounters? = null,
+    @SerializedName(value="access_key")
+    val accessKey: String? = null,
+    @SerializedName(value="can_upload_doc")
+    val canUploadDoc: BaseBoolInt? = null,
+    @SerializedName(value="hash")
+    val hash: String? = null,
+    @SerializedName(value="has_email")
+    val hasEmail: Boolean? = null,
     @SerializedName(value="sex")
     val sex: BaseSex? = null,
     @SerializedName(value="screen_name")
@@ -335,4 +469,31 @@ data class FriendsUserXtrLists(
     val canAccessClosed: Boolean? = null,
     @SerializedName(value="is_closed")
     val isClosed: Boolean? = null
-)
+) {
+    enum class WallDefault(
+        val value: String
+    ) {
+        OWNER("owner"),
+
+        ALL("all");
+
+        class Serializer : JsonSerializer<WallDefault>, JsonDeserializer<WallDefault> {
+            override fun serialize(
+                src: WallDefault?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
+            override fun deserialize(
+                json: JsonElement?,
+                typeOfT: Type?,
+                context: JsonDeserializationContext?
+            ): WallDefault {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
+        }
+    }
+}
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsUserXtrPhone.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsUserXtrPhone.kt
index 48f330f1fe..3d3ebe8b37 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsUserXtrPhone.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/friends/dto/FriendsUserXtrPhone.kt
@@ -27,6 +27,14 @@
 // *********************************************************************
 package com.vk.sdk.api.friends.dto
 
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import com.vk.sdk.api.audio.dto.AudioAudio
 import com.vk.sdk.api.base.dto.BaseBoolInt
@@ -35,6 +43,7 @@ import com.vk.sdk.api.base.dto.BaseCountry
 import com.vk.sdk.api.base.dto.BaseCropPhoto
 import com.vk.sdk.api.base.dto.BaseSex
 import com.vk.sdk.api.owner.dto.OwnerState
+import com.vk.sdk.api.photos.dto.PhotosPhoto
 import com.vk.sdk.api.users.dto.UsersCareer
 import com.vk.sdk.api.users.dto.UsersExports
 import com.vk.sdk.api.users.dto.UsersLastSeen
@@ -45,9 +54,14 @@ import com.vk.sdk.api.users.dto.UsersPersonal
 import com.vk.sdk.api.users.dto.UsersRelative
 import com.vk.sdk.api.users.dto.UsersSchool
 import com.vk.sdk.api.users.dto.UsersUniversity
+import com.vk.sdk.api.users.dto.UsersUserCounters
 import com.vk.sdk.api.users.dto.UsersUserMin
 import com.vk.sdk.api.users.dto.UsersUserRelation
+import com.vk.sdk.api.users.dto.UsersUserType
+import com.vk.sdk.api.video.dto.VideoLiveInfo
+import java.lang.reflect.Type
 import kotlin.Boolean
+import kotlin.Float
 import kotlin.Int
 import kotlin.String
 import kotlin.collections.List
@@ -68,6 +82,7 @@ import kotlin.collections.List
  * @param lastNameAbl User's last name in prepositional case
  * @param nickname User nickname
  * @param maidenName User maiden name
+ * @param contactName User contact name
  * @param domain Domain name of the user's page
  * @param bdate User's date of birth
  * @param city no description
@@ -87,6 +102,38 @@ import kotlin.collections.List
  * @param canPost Information whether current user can post on the user's wall
  * @param canSeeAllPosts Information whether current user can see other users' audio on the wall
  * @param canSeeAudio Information whether current user can see the user's audio
+ * @param type no description
+ * @param email no description
+ * @param skype no description
+ * @param facebook no description
+ * @param facebookName no description
+ * @param twitter no description
+ * @param livejournal no description
+ * @param instagram no description
+ * @param test no description
+ * @param videoLive no description
+ * @param isVideoLiveNotificationsBlocked no description
+ * @param isService no description
+ * @param serviceDescription no description
+ * @param photo no description
+ * @param photoBig no description
+ * @param photo400 no description
+ * @param photoMaxSize no description
+ * @param language no description
+ * @param storiesArchiveCount no description
+ * @param wallDefault no description
+ * @param canCall Information whether current user can call
+ * @param canSeeWishes Information whether current user can see the user's wishes
+ * @param canSeeGifts Information whether current user can see the user's gifts
+ * @param interests no description
+ * @param books no description
+ * @param tv no description
+ * @param quotes no description
+ * @param about no description
+ * @param games no description
+ * @param movies no description
+ * @param activities no description
+ * @param music no description
  * @param canWritePrivateMessage Information whether current user can write private message
  * @param canSendFriendRequest Information whether current user can send a friend request
  * @param canBeInvitedGroup Information whether current user can be invited to the community
@@ -102,6 +149,7 @@ import kotlin.collections.List
  * @param followersCount Number of user's followers
  * @param videoLiveLevel User level in live streams achievements
  * @param videoLiveCount Number of user's live streams
+ * @param clipsCount Number of user's clips
  * @param blacklisted Information whether current user is in the requested user's blacklist.
  * @param blacklistedByMe Information whether the requested user is in current user's blacklist
  * @param isFavorite Information whether the requested user is in faves of current user
@@ -113,6 +161,7 @@ import kotlin.collections.List
  * @param military no description
  * @param university University ID
  * @param universityName University name
+ * @param universityGroupId no description
  * @param faculty Faculty ID
  * @param facultyName Faculty name
  * @param graduation Graduation year
@@ -128,6 +177,11 @@ import kotlin.collections.List
  * @param isSubscribedPodcasts Information whether current user is subscribed to podcasts
  * @param canSubscribePodcasts Owner in whitelist or not
  * @param canSubscribePosts Can subscribe to wall
+ * @param counters no description
+ * @param accessKey no description
+ * @param canUploadDoc no description
+ * @param hash no description
+ * @param hasEmail no description
  * @param sex User sex
  * @param screenName Domain name of the user's page
  * @param photo50 URL of square photo of the user with 50 pixels in width
@@ -179,6 +233,8 @@ data class FriendsUserXtrPhone(
     val nickname: String? = null,
     @SerializedName(value="maiden_name")
     val maidenName: String? = null,
+    @SerializedName(value="contact_name")
+    val contactName: String? = null,
     @SerializedName(value="domain")
     val domain: String? = null,
     @SerializedName(value="bdate")
@@ -188,7 +244,7 @@ data class FriendsUserXtrPhone(
     @SerializedName(value="country")
     val country: BaseCountry? = null,
     @SerializedName(value="timezone")
-    val timezone: Int? = null,
+    val timezone: Float? = null,
     @SerializedName(value="owner_state")
     val ownerState: OwnerState? = null,
     @SerializedName(value="photo_200")
@@ -217,6 +273,70 @@ data class FriendsUserXtrPhone(
     val canSeeAllPosts: BaseBoolInt? = null,
     @SerializedName(value="can_see_audio")
     val canSeeAudio: BaseBoolInt? = null,
+    @SerializedName(value="type")
+    val type: UsersUserType? = null,
+    @SerializedName(value="email")
+    val email: String? = null,
+    @SerializedName(value="skype")
+    val skype: String? = null,
+    @SerializedName(value="facebook")
+    val facebook: String? = null,
+    @SerializedName(value="facebook_name")
+    val facebookName: String? = null,
+    @SerializedName(value="twitter")
+    val twitter: String? = null,
+    @SerializedName(value="livejournal")
+    val livejournal: String? = null,
+    @SerializedName(value="instagram")
+    val instagram: String? = null,
+    @SerializedName(value="test")
+    val test: BaseBoolInt? = null,
+    @SerializedName(value="video_live")
+    val videoLive: VideoLiveInfo? = null,
+    @SerializedName(value="is_video_live_notifications_blocked")
+    val isVideoLiveNotificationsBlocked: BaseBoolInt? = null,
+    @SerializedName(value="is_service")
+    val isService: Boolean? = null,
+    @SerializedName(value="service_description")
+    val serviceDescription: String? = null,
+    @SerializedName(value="photo")
+    val photo: String? = null,
+    @SerializedName(value="photo_big")
+    val photoBig: String? = null,
+    @SerializedName(value="photo_400")
+    val photo400: String? = null,
+    @SerializedName(value="photo_max_size")
+    val photoMaxSize: PhotosPhoto? = null,
+    @SerializedName(value="language")
+    val language: String? = null,
+    @SerializedName(value="stories_archive_count")
+    val storiesArchiveCount: Int? = null,
+    @SerializedName(value="wall_default")
+    val wallDefault: WallDefault? = null,
+    @SerializedName(value="can_call")
+    val canCall: Boolean? = null,
+    @SerializedName(value="can_see_wishes")
+    val canSeeWishes: Boolean? = null,
+    @SerializedName(value="can_see_gifts")
+    val canSeeGifts: BaseBoolInt? = null,
+    @SerializedName(value="interests")
+    val interests: String? = null,
+    @SerializedName(value="books")
+    val books: String? = null,
+    @SerializedName(value="tv")
+    val tv: String? = null,
+    @SerializedName(value="quotes")
+    val quotes: String? = null,
+    @SerializedName(value="about")
+    val about: String? = null,
+    @SerializedName(value="games")
+    val games: String? = null,
+    @SerializedName(value="movies")
+    val movies: String? = null,
+    @SerializedName(value="activities")
+    val activities: String? = null,
+    @SerializedName(value="music")
+    val music: String? = null,
     @SerializedName(value="can_write_private_message")
     val canWritePrivateMessage: BaseBoolInt? = null,
     @SerializedName(value="can_send_friend_request")
@@ -247,6 +367,8 @@ data class FriendsUserXtrPhone(
     val videoLiveLevel: Int? = null,
     @SerializedName(value="video_live_count")
     val videoLiveCount: Int? = null,
+    @SerializedName(value="clips_count")
+    val clipsCount: Int? = null,
     @SerializedName(value="blacklisted")
     val blacklisted: BaseBoolInt? = null,
     @SerializedName(value="blacklisted_by_me")
@@ -267,6 +389,8 @@ data class FriendsUserXtrPhone(
     val university: Int? = null,
     @SerializedName(value="university_name")
     val universityName: String? = null,
+    @SerializedName(value="university_group_id")
+    val universityGroupId: Int? = null,
     @SerializedName(value="faculty")
     val faculty: Int? = null,
     @SerializedName(value="faculty_name")
@@ -297,6 +421,16 @@ data class FriendsUserXtrPhone(
     val canSubscribePodcasts: Boolean? = null,
     @SerializedName(value="can_subscribe_posts")
     val canSubscribePosts: Boolean? = null,
+    @SerializedName(value="counters")
+    val counters: UsersUserCounters? = null,
+    @SerializedName(value="access_key")
+    val accessKey: String? = null,
+    @SerializedName(value="can_upload_doc")
+    val canUploadDoc: BaseBoolInt? = null,
+    @SerializedName(value="hash")
+    val hash: String? = null,
+    @SerializedName(value="has_email")
+    val hasEmail: Boolean? = null,
     @SerializedName(value="sex")
     val sex: BaseSex? = null,
     @SerializedName(value="screen_name")
@@ -335,4 +469,31 @@ data class FriendsUserXtrPhone(
     val canAccessClosed: Boolean? = null,
     @SerializedName(value="is_closed")
     val isClosed: Boolean? = null
-)
+) {
+    enum class WallDefault(
+        val value: String
+    ) {
+        OWNER("owner"),
+
+        ALL("all");
+
+        class Serializer : JsonSerializer<WallDefault>, JsonDeserializer<WallDefault> {
+            override fun serialize(
+                src: WallDefault?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
+            override fun deserialize(
+                json: JsonElement?,
+                typeOfT: Type?,
+                context: JsonDeserializationContext?
+            ): WallDefault {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
+        }
+    }
+}
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/gifts/dto/GiftsGiftPrivacy.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/gifts/dto/GiftsGiftPrivacy.kt
index d5fccdfcb8..825da161a6 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/gifts/dto/GiftsGiftPrivacy.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/gifts/dto/GiftsGiftPrivacy.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.gifts.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,22 @@ enum class GiftsGiftPrivacy(
 
     NAME_AND_MESSAGE_FOR_RECIPIENT_ONLY(2);
 
-    class Serializer : JsonDeserializer<GiftsGiftPrivacy> {
+    class Serializer : JsonSerializer<GiftsGiftPrivacy>, JsonDeserializer<GiftsGiftPrivacy> {
+        override fun serialize(
+            src: GiftsGiftPrivacy?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GiftsGiftPrivacy = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GiftsGiftPrivacy {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/gifts/dto/GiftsLayout.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/gifts/dto/GiftsLayout.kt
index 8420e3595c..e395852aca 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/gifts/dto/GiftsLayout.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/gifts/dto/GiftsLayout.kt
@@ -28,6 +28,7 @@
 package com.vk.sdk.api.gifts.dto
 
 import com.google.gson.annotations.SerializedName
+import kotlin.Boolean
 import kotlin.Int
 import kotlin.String
 
@@ -38,6 +39,7 @@ import kotlin.String
  * @param thumb48 URL of the preview image with 48 px in width
  * @param thumb96 URL of the preview image with 96 px in width
  * @param stickersProductId ID of the sticker pack, if the gift is representing one
+ * @param isStickersStyle Information whether gift represents a stickers style
  * @param buildId ID of the build of constructor gift
  * @param keywords Keywords used for search
  */
@@ -54,6 +56,8 @@ data class GiftsLayout(
     val thumb96: String? = null,
     @SerializedName(value="stickers_product_id")
     val stickersProductId: Int? = null,
+    @SerializedName(value="is_stickers_style")
+    val isStickersStyle: Boolean? = null,
     @SerializedName(value="build_id")
     val buildId: String? = null,
     @SerializedName(value="keywords")
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsAddAddressWorkInfoStatus.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsAddAddressWorkInfoStatus.kt
index 577fbd4a3e..f81f9c82dd 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsAddAddressWorkInfoStatus.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsAddAddressWorkInfoStatus.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -46,12 +51,23 @@ enum class GroupsAddAddressWorkInfoStatus(
 
     TIMETABLE("timetable");
 
-    class Serializer : JsonDeserializer<GroupsAddAddressWorkInfoStatus> {
+    class Serializer : JsonSerializer<GroupsAddAddressWorkInfoStatus>,
+            JsonDeserializer<GroupsAddAddressWorkInfoStatus> {
+        override fun serialize(
+            src: GroupsAddAddressWorkInfoStatus?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsAddAddressWorkInfoStatus = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsAddAddressWorkInfoStatus {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsAddCallbackServerResponseDto.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsAddCallbackServerResponseDto.kt
index 34fe1a39b1..1fa972132b 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsAddCallbackServerResponseDto.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsAddCallbackServerResponseDto.kt
@@ -35,5 +35,5 @@ import kotlin.Int
  */
 data class GroupsAddCallbackServerResponseDto(
     @SerializedName(value="server_id")
-    val serverId: Int? = null
+    val serverId: Int
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsAddressWorkInfoStatus.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsAddressWorkInfoStatus.kt
index 67261edf60..a7ce039fe1 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsAddressWorkInfoStatus.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsAddressWorkInfoStatus.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -46,12 +51,23 @@ enum class GroupsAddressWorkInfoStatus(
 
     FOREVER_CLOSED("forever_closed");
 
-    class Serializer : JsonDeserializer<GroupsAddressWorkInfoStatus> {
+    class Serializer : JsonSerializer<GroupsAddressWorkInfoStatus>,
+            JsonDeserializer<GroupsAddressWorkInfoStatus> {
+        override fun serialize(
+            src: GroupsAddressWorkInfoStatus?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsAddressWorkInfoStatus = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsAddressWorkInfoStatus {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsBanInfoReason.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsBanInfoReason.kt
index 2ee17a55c7..b71d379f77 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsBanInfoReason.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsBanInfoReason.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -46,12 +51,22 @@ enum class GroupsBanInfoReason(
 
     FLOOD(4);
 
-    class Serializer : JsonDeserializer<GroupsBanInfoReason> {
+    class Serializer : JsonSerializer<GroupsBanInfoReason>, JsonDeserializer<GroupsBanInfoReason> {
+        override fun serialize(
+            src: GroupsBanInfoReason?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsBanInfoReason = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsBanInfoReason {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsCallbackServer.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsCallbackServer.kt
index 2aa63c3ef1..bc58f99e99 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsCallbackServer.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsCallbackServer.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import java.lang.reflect.Type
 import kotlin.Int
@@ -68,12 +73,23 @@ data class GroupsCallbackServer(
 
         OK("ok");
 
-        class Serializer : JsonDeserializer<Status> {
+        class Serializer : JsonSerializer<Status>, JsonDeserializer<Status> {
+            override fun serialize(
+                src: Status?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): Status = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Status {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsContactsItem.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsContactsItem.kt
index d3fd88a2a6..bc60481089 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsContactsItem.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsContactsItem.kt
@@ -32,18 +32,18 @@ import kotlin.Int
 import kotlin.String
 
 /**
+ * @param userId User ID
  * @param desc Contact description
- * @param email Contact email
  * @param phone Contact phone
- * @param userId User ID
+ * @param email Contact email
  */
 data class GroupsContactsItem(
+    @SerializedName(value="user_id")
+    val userId: Int? = null,
     @SerializedName(value="desc")
     val desc: String? = null,
-    @SerializedName(value="email")
-    val email: String? = null,
     @SerializedName(value="phone")
     val phone: String? = null,
-    @SerializedName(value="user_id")
-    val userId: Int? = null
+    @SerializedName(value="email")
+    val email: String? = null
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsCreateSubtype.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsCreateSubtype.kt
index 3d3454f758..6669f89ef7 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsCreateSubtype.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsCreateSubtype.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -44,12 +49,22 @@ enum class GroupsCreateSubtype(
 
     PRODUCT_OR_ART(4);
 
-    class Serializer : JsonDeserializer<GroupsCreateSubtype> {
+    class Serializer : JsonSerializer<GroupsCreateSubtype>, JsonDeserializer<GroupsCreateSubtype> {
+        override fun serialize(
+            src: GroupsCreateSubtype?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsCreateSubtype = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsCreateSubtype {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsCreateType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsCreateType.kt
index 11e9f270e0..1c488dea7a 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsCreateType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsCreateType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,22 @@ enum class GroupsCreateType(
 
     PUBLIC("public");
 
-    class Serializer : JsonDeserializer<GroupsCreateType> {
+    class Serializer : JsonSerializer<GroupsCreateType>, JsonDeserializer<GroupsCreateType> {
+        override fun serialize(
+            src: GroupsCreateType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsCreateType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsCreateType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsEditAddressWorkInfoStatus.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsEditAddressWorkInfoStatus.kt
index 745a74f47f..2357b44b89 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsEditAddressWorkInfoStatus.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsEditAddressWorkInfoStatus.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -46,12 +51,23 @@ enum class GroupsEditAddressWorkInfoStatus(
 
     TIMETABLE("timetable");
 
-    class Serializer : JsonDeserializer<GroupsEditAddressWorkInfoStatus> {
+    class Serializer : JsonSerializer<GroupsEditAddressWorkInfoStatus>,
+            JsonDeserializer<GroupsEditAddressWorkInfoStatus> {
+        override fun serialize(
+            src: GroupsEditAddressWorkInfoStatus?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsEditAddressWorkInfoStatus = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsEditAddressWorkInfoStatus {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsEditAgeLimits.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsEditAgeLimits.kt
index cf101fc4b5..47ef5368d5 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsEditAgeLimits.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsEditAgeLimits.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,22 @@ enum class GroupsEditAgeLimits(
 
     THREE_(3);
 
-    class Serializer : JsonDeserializer<GroupsEditAgeLimits> {
+    class Serializer : JsonSerializer<GroupsEditAgeLimits>, JsonDeserializer<GroupsEditAgeLimits> {
+        override fun serialize(
+            src: GroupsEditAgeLimits?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsEditAgeLimits = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsEditAgeLimits {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsFields.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsFields.kt
index 92a5aeb1dc..617158ee96 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsFields.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsFields.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -44,6 +49,10 @@ enum class GroupsFields(
 
     IS_SUBSCRIBED("is_subscribed"),
 
+    IS_SUBSCRIBED_PODCASTS("is_subscribed_podcasts"),
+
+    CAN_SUBSCRIBE_PODCASTS("can_subscribe_podcasts"),
+
     CITY("city"),
 
     COUNTRY("country"),
@@ -56,21 +65,29 @@ enum class GroupsFields(
 
     MEMBERS_COUNT("members_count"),
 
+    REQUESTS_COUNT("requests_count"),
+
     COUNTERS("counters"),
 
     COVER("cover"),
 
     CAN_POST("can_post"),
 
-    CAN_SEE_ALL_POSTS("can_see_all_posts"),
+    CAN_SUGGEST("can_suggest"),
 
-    ACTIVITY("activity"),
+    CAN_UPLOAD_STORY("can_upload_story"),
 
-    FIXED_POST("fixed_post"),
+    CAN_UPLOAD_DOC("can_upload_doc"),
+
+    CAN_UPLOAD_VIDEO("can_upload_video"),
+
+    CAN_SEE_ALL_POSTS("can_see_all_posts"),
 
     CAN_CREATE_TOPIC("can_create_topic"),
 
-    CAN_UPLOAD_VIDEO("can_upload_video"),
+    ACTIVITY("activity"),
+
+    FIXED_POST("fixed_post"),
 
     HAS_PHOTO("has_photo"),
 
@@ -86,8 +103,14 @@ enum class GroupsFields(
 
     MAIN_SECTION("main_section"),
 
+    SECONDARY_SECTION("secondary_section"),
+
+    WALL("wall"),
+
     TRENDING("trending"),
 
+    HAD_TORCH("had_torch"),
+
     CAN_MESSAGE("can_message"),
 
     IS_MARKET_CART_ENABLED("is_market_cart_enabled"),
@@ -96,6 +119,10 @@ enum class GroupsFields(
 
     CAN_SEND_NOTIFY("can_send_notify"),
 
+    HAS_GROUP_CHANNEL("has_group_channel"),
+
+    GROUP_CHANNEL("group_channel"),
+
     ONLINE_STATUS("online_status"),
 
     START_DATE("start_date"),
@@ -114,6 +141,12 @@ enum class GroupsFields(
 
     HAS_MARKET_APP("has_market_app"),
 
+    VKPAY_CAN_TRANSFER("vkpay_can_transfer"),
+
+    VKPAY_RECEIVER_ID("vkpay_receiver_id"),
+
+    USING_VKPAY_MARKET_APP("using_vkpay_market_app"),
+
     ADDRESSES("addresses"),
 
     LIVE_COVERS("live_covers"),
@@ -122,6 +155,8 @@ enum class GroupsFields(
 
     CAN_SUBSCRIBE_POSTS("can_subscribe_posts"),
 
+    CREATE_DATE("create_date"),
+
     MENU("menu"),
 
     WARNING_NOTIFICATION("warning_notification"),
@@ -158,14 +193,34 @@ enum class GroupsFields(
 
     VIDEO_LIVE_COUNT("video_live_count"),
 
-    CLIPS_COUNT("clips_count");
+    CLIPS_COUNT("clips_count"),
+
+    MICROLANDING("microlanding"),
+
+    LIKE("like"),
+
+    YOULA_STATUS("youla_status"),
+
+    IS_BUSINESS("is_business"),
+
+    NEW_POSTS_COUNT("new_posts_count");
+
+    class Serializer : JsonSerializer<GroupsFields>, JsonDeserializer<GroupsFields> {
+        override fun serialize(
+            src: GroupsFields?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
 
-    class Serializer : JsonDeserializer<GroupsFields> {
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsFields = values().first { it.value.toString() == json!!.asJsonPrimitive.toString()
-                }
+        ): GroupsFields {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsFilter.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsFilter.kt
index 6fdb409810..6680bb9a60 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsFilter.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsFilter.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -60,12 +65,22 @@ enum class GroupsFilter(
 
     CAN_POST_CLIPS("can_post_clips");
 
-    class Serializer : JsonDeserializer<GroupsFilter> {
+    class Serializer : JsonSerializer<GroupsFilter>, JsonDeserializer<GroupsFilter> {
+        override fun serialize(
+            src: GroupsFilter?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsFilter = values().first { it.value.toString() == json!!.asJsonPrimitive.toString()
-                }
+        ): GroupsFilter {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetByIdResponseDto.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetByIdResponseDto.kt
new file mode 100644
index 0000000000..6eddd8174b
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetByIdResponseDto.kt
@@ -0,0 +1,42 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.groups.dto
+
+import com.google.gson.annotations.SerializedName
+import kotlin.collections.List
+
+/**
+ * @param groups no description
+ * @param profiles no description
+ */
+data class GroupsGetByIdResponseDto(
+    @SerializedName(value="groups")
+    val groups: List<GroupsGroupFull>? = null,
+    @SerializedName(value="profiles")
+    val profiles: List<GroupsProfileItem>? = null
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetCallbackConfirmationCodeResponseDto.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetCallbackConfirmationCodeResponseDto.kt
index c195b25654..b157d0d655 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetCallbackConfirmationCodeResponseDto.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetCallbackConfirmationCodeResponseDto.kt
@@ -35,5 +35,5 @@ import kotlin.String
  */
 data class GroupsGetCallbackConfirmationCodeResponseDto(
     @SerializedName(value="code")
-    val code: String? = null
+    val code: String
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetInvitedUsersNameCase.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetInvitedUsersNameCase.kt
index e22e0aafbf..cdadf3ba65 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetInvitedUsersNameCase.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetInvitedUsersNameCase.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -48,12 +53,23 @@ enum class GroupsGetInvitedUsersNameCase(
 
     PREPOSITIONAL("abl");
 
-    class Serializer : JsonDeserializer<GroupsGetInvitedUsersNameCase> {
+    class Serializer : JsonSerializer<GroupsGetInvitedUsersNameCase>,
+            JsonDeserializer<GroupsGetInvitedUsersNameCase> {
+        override fun serialize(
+            src: GroupsGetInvitedUsersNameCase?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsGetInvitedUsersNameCase = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsGetInvitedUsersNameCase {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetInvitesExtendedResponseDto.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetInvitesExtendedResponseDto.kt
index ec5b0eb6e8..ba17f19eb7 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetInvitesExtendedResponseDto.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetInvitesExtendedResponseDto.kt
@@ -42,7 +42,7 @@ data class GroupsGetInvitesExtendedResponseDto(
     @SerializedName(value="count")
     val count: Int,
     @SerializedName(value="items")
-    val items: List<GroupsGroupXtrInvitedBy>,
+    val items: List<GroupsGroupFull>,
     @SerializedName(value="profiles")
     val profiles: List<UsersUserMin>,
     @SerializedName(value="groups")
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetInvitesResponseDto.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetInvitesResponseDto.kt
index 929243c27b..3ab6033f57 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetInvitesResponseDto.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetInvitesResponseDto.kt
@@ -39,5 +39,5 @@ data class GroupsGetInvitesResponseDto(
     @SerializedName(value="count")
     val count: Int,
     @SerializedName(value="items")
-    val items: List<GroupsGroupXtrInvitedBy>
+    val items: List<GroupsGroupFull>
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetMembersFilter.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetMembersFilter.kt
index b1a1993014..ee776ff575 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetMembersFilter.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetMembersFilter.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,23 @@ enum class GroupsGetMembersFilter(
 
     UNSURE("unsure");
 
-    class Serializer : JsonDeserializer<GroupsGetMembersFilter> {
+    class Serializer : JsonSerializer<GroupsGetMembersFilter>,
+            JsonDeserializer<GroupsGetMembersFilter> {
+        override fun serialize(
+            src: GroupsGetMembersFilter?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsGetMembersFilter = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsGetMembersFilter {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetMembersSort.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetMembersSort.kt
index 1da18abfff..2213427884 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetMembersSort.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetMembersSort.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -44,12 +49,23 @@ enum class GroupsGetMembersSort(
 
     TIME_DESC("time_desc");
 
-    class Serializer : JsonDeserializer<GroupsGetMembersSort> {
+    class Serializer : JsonSerializer<GroupsGetMembersSort>, JsonDeserializer<GroupsGetMembersSort>
+            {
+        override fun serialize(
+            src: GroupsGetMembersSort?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsGetMembersSort = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsGetMembersSort {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetSettingsResponseDto.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetSettingsResponseDto.kt
index efeafaf9d6..2832071201 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetSettingsResponseDto.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGetSettingsResponseDto.kt
@@ -29,7 +29,6 @@ package com.vk.sdk.api.groups.dto
 
 import com.google.gson.annotations.SerializedName
 import com.vk.sdk.api.base.dto.BaseBoolInt
-import kotlin.Any
 import kotlin.Int
 import kotlin.String
 import kotlin.collections.List
@@ -54,7 +53,6 @@ import kotlin.collections.List
  * @param address Community's page domain
  * @param contacts no description
  * @param links no description
- * @param sectionsList no description
  * @param mainSection no description
  * @param secondarySection no description
  * @param ageLimits no description
@@ -96,7 +94,7 @@ data class GroupsGetSettingsResponseDto(
     @SerializedName(value="obscene_words")
     val obsceneWords: List<String>,
     @SerializedName(value="photos")
-    val photos: Int,
+    val photos: GroupsGroupPhotos,
     @SerializedName(value="title")
     val title: String,
     @SerializedName(value="topics")
@@ -115,14 +113,12 @@ data class GroupsGetSettingsResponseDto(
     val contacts: BaseBoolInt? = null,
     @SerializedName(value="links")
     val links: BaseBoolInt? = null,
-    @SerializedName(value="sections_list")
-    val sectionsList: Any? = null,
     @SerializedName(value="main_section")
     val mainSection: GroupsGroupFullMainSection? = null,
     @SerializedName(value="secondary_section")
     val secondarySection: Int? = null,
     @SerializedName(value="age_limits")
-    val ageLimits: Int? = null,
+    val ageLimits: GroupsGroupAgeLimits? = null,
     @SerializedName(value="events")
     val events: BaseBoolInt? = null,
     @SerializedName(value="event_group_id")
@@ -148,7 +144,7 @@ data class GroupsGetSettingsResponseDto(
     @SerializedName(value="subject_list")
     val subjectList: List<GroupsSubjectItem>? = null,
     @SerializedName(value="suggested_privacy")
-    val suggestedPrivacy: Int? = null,
+    val suggestedPrivacy: GroupsGroupSuggestedPrivacy? = null,
     @SerializedName(value="twitter")
     val twitter: GroupsSettingsTwitter? = null,
     @SerializedName(value="website")
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroup.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroup.kt
index f7112595c5..acbf4360ff 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroup.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroup.kt
@@ -33,51 +33,51 @@ import kotlin.Int
 import kotlin.String
 
 /**
- * @param adminLevel no description
- * @param deactivated Information whether community is banned
- * @param finishDate Finish date in Unixtime format
  * @param id Community ID
- * @param isAdmin Information whether current user is administrator
- * @param isAdvertiser Information whether current user is advertiser
+ * @param name Community name
+ * @param screenName Domain of the community page
  * @param isClosed no description
+ * @param type no description
+ * @param isAdmin Information whether current user is administrator
+ * @param adminLevel no description
  * @param isMember Information whether current user is member
- * @param name Community name
+ * @param isAdvertiser Information whether current user is advertiser
+ * @param startDate Start date in Unixtime format
+ * @param finishDate Finish date in Unixtime format
+ * @param deactivated Information whether community is banned
+ * @param photo50 URL of square photo of the community with 50 pixels in width
  * @param photo100 URL of square photo of the community with 100 pixels in width
  * @param photo200 URL of square photo of the community with 200 pixels in width
- * @param photo50 URL of square photo of the community with 50 pixels in width
- * @param screenName Domain of the community page
- * @param startDate Start date in Unixtime format
- * @param type no description
  */
 data class GroupsGroup(
-    @SerializedName(value="admin_level")
-    val adminLevel: GroupsGroupAdminLevel? = null,
-    @SerializedName(value="deactivated")
-    val deactivated: String? = null,
-    @SerializedName(value="finish_date")
-    val finishDate: Int? = null,
     @SerializedName(value="id")
-    val id: Int? = null,
+    val id: Int,
+    @SerializedName(value="name")
+    val name: String,
+    @SerializedName(value="screen_name")
+    val screenName: String,
+    @SerializedName(value="is_closed")
+    val isClosed: GroupsGroupIsClosed,
+    @SerializedName(value="type")
+    val type: GroupsGroupType? = null,
     @SerializedName(value="is_admin")
     val isAdmin: BaseBoolInt? = null,
-    @SerializedName(value="is_advertiser")
-    val isAdvertiser: BaseBoolInt? = null,
-    @SerializedName(value="is_closed")
-    val isClosed: GroupsGroupIsClosed? = null,
+    @SerializedName(value="admin_level")
+    val adminLevel: GroupsGroupAdminLevel? = null,
     @SerializedName(value="is_member")
     val isMember: BaseBoolInt? = null,
-    @SerializedName(value="name")
-    val name: String? = null,
+    @SerializedName(value="is_advertiser")
+    val isAdvertiser: BaseBoolInt? = null,
+    @SerializedName(value="start_date")
+    val startDate: Int? = null,
+    @SerializedName(value="finish_date")
+    val finishDate: Int? = null,
+    @SerializedName(value="deactivated")
+    val deactivated: String? = null,
+    @SerializedName(value="photo_50")
+    val photo50: String? = null,
     @SerializedName(value="photo_100")
     val photo100: String? = null,
     @SerializedName(value="photo_200")
-    val photo200: String? = null,
-    @SerializedName(value="photo_50")
-    val photo50: String? = null,
-    @SerializedName(value="screen_name")
-    val screenName: String? = null,
-    @SerializedName(value="start_date")
-    val startDate: Int? = null,
-    @SerializedName(value="type")
-    val type: GroupsGroupType? = null
+    val photo200: String? = null
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupAccess.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupAccess.kt
index 96e93100d7..0ed517bd73 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupAccess.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupAccess.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,22 @@ enum class GroupsGroupAccess(
 
     PRIVATE(2);
 
-    class Serializer : JsonDeserializer<GroupsGroupAccess> {
+    class Serializer : JsonSerializer<GroupsGroupAccess>, JsonDeserializer<GroupsGroupAccess> {
+        override fun serialize(
+            src: GroupsGroupAccess?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsGroupAccess = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsGroupAccess {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupAdminLevel.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupAdminLevel.kt
index 5dd84bb724..154240361b 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupAdminLevel.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupAdminLevel.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,23 @@ enum class GroupsGroupAdminLevel(
 
     ADMINISTRATOR(3);
 
-    class Serializer : JsonDeserializer<GroupsGroupAdminLevel> {
+    class Serializer : JsonSerializer<GroupsGroupAdminLevel>,
+            JsonDeserializer<GroupsGroupAdminLevel> {
+        override fun serialize(
+            src: GroupsGroupAdminLevel?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsGroupAdminLevel = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsGroupAdminLevel {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupAgeLimits.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupAgeLimits.kt
index e3996ced02..9b6dae2793 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupAgeLimits.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupAgeLimits.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,23 @@ enum class GroupsGroupAgeLimits(
 
     EIGHTEEN__PLUS(3);
 
-    class Serializer : JsonDeserializer<GroupsGroupAgeLimits> {
+    class Serializer : JsonSerializer<GroupsGroupAgeLimits>, JsonDeserializer<GroupsGroupAgeLimits>
+            {
+        override fun serialize(
+            src: GroupsGroupAgeLimits?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsGroupAgeLimits = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsGroupAgeLimits {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupAudio.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupAudio.kt
index c58c542627..47418d5caf 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupAudio.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupAudio.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,22 @@ enum class GroupsGroupAudio(
 
     LIMITED(2);
 
-    class Serializer : JsonDeserializer<GroupsGroupAudio> {
+    class Serializer : JsonSerializer<GroupsGroupAudio>, JsonDeserializer<GroupsGroupAudio> {
+        override fun serialize(
+            src: GroupsGroupAudio?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsGroupAudio = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsGroupAudio {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupDocs.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupDocs.kt
index ad49f05879..395bdce8df 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupDocs.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupDocs.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,22 @@ enum class GroupsGroupDocs(
 
     LIMITED(2);
 
-    class Serializer : JsonDeserializer<GroupsGroupDocs> {
+    class Serializer : JsonSerializer<GroupsGroupDocs>, JsonDeserializer<GroupsGroupDocs> {
+        override fun serialize(
+            src: GroupsGroupDocs?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsGroupDocs = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsGroupDocs {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupFull.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupFull.kt
index 7afc0b4fb2..849fd1029c 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupFull.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupFull.kt
@@ -30,7 +30,13 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
+import com.vk.sdk.api.audio.dto.AudioAudio
 import com.vk.sdk.api.base.dto.BaseBoolInt
 import com.vk.sdk.api.base.dto.BaseCountry
 import com.vk.sdk.api.base.dto.BaseCropPhoto
@@ -54,57 +60,66 @@ import kotlin.collections.List
  * @param description Community description
  * @param wikiPage Community's main wiki page title
  * @param membersCount Community members number
+ * @param requestsCount The number of incoming requests to the community
  * @param videoLiveLevel Community level live streams achievements
  * @param videoLiveCount Number of community's live streams
+ * @param clipsCount Number of community's clips
  * @param counters no description
  * @param cover no description
  * @param canPost Information whether current user can post on community's wall
+ * @param canSuggest no description
+ * @param canUploadStory Information whether current user can upload story
+ * @param canUploadDoc Information whether current user can upload doc
+ * @param canUploadVideo Information whether current user can upload video
  * @param canSeeAllPosts Information whether current user can see all posts on community's wall
+ * @param canCreateTopic Information whether current user can create topic
  * @param activity Type of group, start date of event or category of public page
  * @param fixedPost Fixed post ID
- * @param canCreateTopic Information whether current user can create topic
- * @param canUploadDoc Information whether current user can upload doc
- * @param canUploadStory Information whether current user can upload story
- * @param canUploadVideo Information whether current user can upload video
  * @param hasPhoto Information whether community has photo
  * @param
  * cropPhoto ------ - ------, -- ------- -------- ---------- - ----------- ---------- ----------
  * @param status Community status
+ * @param statusAudio no description
  * @param mainAlbumId Community's main photo album ID
  * @param links no description
  * @param contacts no description
  * @param wall Information about wall status in community
  * @param site Community's website
  * @param mainSection no description
+ * @param secondarySection no description
  * @param trending Information whether the community has a "fire" pictogram.
  * @param canMessage Information whether current user can send a message to community
  * @param isMessagesBlocked Information whether community can send a message to current user
  * @param canSendNotify Information whether community can send notifications by phone number to
  * current user
  * @param onlineStatus Status of replies in community messages
+ * @param invitedBy Inviter ID
  * @param ageLimits Information whether age limit
  * @param banInfo User ban info
  * @param hasMarketApp Information whether community has installed market app
+ * @param usingVkpayMarketApp no description
+ * @param hasGroupChannel no description
  * @param addresses Info about addresses in groups
  * @param isSubscribedPodcasts Information whether current user is subscribed to podcasts
  * @param canSubscribePodcasts Owner in whitelist or not
  * @param canSubscribePosts Can subscribe to wall
  * @param liveCovers Live covers state
- * @param adminLevel no description
- * @param deactivated Information whether community is banned
- * @param finishDate Finish date in Unixtime format
+ * @param storiesArchiveCount no description
  * @param id Community ID
- * @param isAdmin Information whether current user is administrator
- * @param isAdvertiser Information whether current user is advertiser
+ * @param name Community name
+ * @param screenName Domain of the community page
  * @param isClosed no description
+ * @param type no description
+ * @param isAdmin Information whether current user is administrator
+ * @param adminLevel no description
  * @param isMember Information whether current user is member
- * @param name Community name
+ * @param isAdvertiser Information whether current user is advertiser
+ * @param startDate Start date in Unixtime format
+ * @param finishDate Finish date in Unixtime format
+ * @param deactivated Information whether community is banned
+ * @param photo50 URL of square photo of the community with 50 pixels in width
  * @param photo100 URL of square photo of the community with 100 pixels in width
  * @param photo200 URL of square photo of the community with 200 pixels in width
- * @param photo50 URL of square photo of the community with 50 pixels in width
- * @param screenName Domain of the community page
- * @param startDate Start date in Unixtime format
- * @param type no description
  */
 data class GroupsGroupFull(
     @SerializedName(value="market")
@@ -131,36 +146,44 @@ data class GroupsGroupFull(
     val wikiPage: String? = null,
     @SerializedName(value="members_count")
     val membersCount: Int? = null,
+    @SerializedName(value="requests_count")
+    val requestsCount: Int? = null,
     @SerializedName(value="video_live_level")
     val videoLiveLevel: Int? = null,
     @SerializedName(value="video_live_count")
     val videoLiveCount: Int? = null,
+    @SerializedName(value="clips_count")
+    val clipsCount: Int? = null,
     @SerializedName(value="counters")
     val counters: GroupsCountersGroup? = null,
     @SerializedName(value="cover")
     val cover: GroupsCover? = null,
     @SerializedName(value="can_post")
     val canPost: BaseBoolInt? = null,
+    @SerializedName(value="can_suggest")
+    val canSuggest: BaseBoolInt? = null,
+    @SerializedName(value="can_upload_story")
+    val canUploadStory: BaseBoolInt? = null,
+    @SerializedName(value="can_upload_doc")
+    val canUploadDoc: BaseBoolInt? = null,
+    @SerializedName(value="can_upload_video")
+    val canUploadVideo: BaseBoolInt? = null,
     @SerializedName(value="can_see_all_posts")
     val canSeeAllPosts: BaseBoolInt? = null,
+    @SerializedName(value="can_create_topic")
+    val canCreateTopic: BaseBoolInt? = null,
     @SerializedName(value="activity")
     val activity: String? = null,
     @SerializedName(value="fixed_post")
     val fixedPost: Int? = null,
-    @SerializedName(value="can_create_topic")
-    val canCreateTopic: BaseBoolInt? = null,
-    @SerializedName(value="can_upload_doc")
-    val canUploadDoc: BaseBoolInt? = null,
-    @SerializedName(value="can_upload_story")
-    val canUploadStory: BaseBoolInt? = null,
-    @SerializedName(value="can_upload_video")
-    val canUploadVideo: BaseBoolInt? = null,
     @SerializedName(value="has_photo")
     val hasPhoto: BaseBoolInt? = null,
     @SerializedName(value="crop_photo")
     val cropPhoto: BaseCropPhoto? = null,
     @SerializedName(value="status")
     val status: String? = null,
+    @SerializedName(value="status_audio")
+    val statusAudio: AudioAudio? = null,
     @SerializedName(value="main_album_id")
     val mainAlbumId: Int? = null,
     @SerializedName(value="links")
@@ -173,6 +196,8 @@ data class GroupsGroupFull(
     val site: String? = null,
     @SerializedName(value="main_section")
     val mainSection: GroupsGroupFullMainSection? = null,
+    @SerializedName(value="secondary_section")
+    val secondarySection: Int? = null,
     @SerializedName(value="trending")
     val trending: BaseBoolInt? = null,
     @SerializedName(value="can_message")
@@ -183,12 +208,18 @@ data class GroupsGroupFull(
     val canSendNotify: BaseBoolInt? = null,
     @SerializedName(value="online_status")
     val onlineStatus: GroupsOnlineStatus? = null,
+    @SerializedName(value="invited_by")
+    val invitedBy: Int? = null,
     @SerializedName(value="age_limits")
     val ageLimits: GroupsGroupFullAgeLimits? = null,
     @SerializedName(value="ban_info")
     val banInfo: GroupsGroupBanInfo? = null,
     @SerializedName(value="has_market_app")
     val hasMarketApp: Boolean? = null,
+    @SerializedName(value="using_vkpay_market_app")
+    val usingVkpayMarketApp: Boolean? = null,
+    @SerializedName(value="has_group_channel")
+    val hasGroupChannel: Boolean? = null,
     @SerializedName(value="addresses")
     val addresses: GroupsAddressesInfo? = null,
     @SerializedName(value="is_subscribed_podcasts")
@@ -199,36 +230,38 @@ data class GroupsGroupFull(
     val canSubscribePosts: Boolean? = null,
     @SerializedName(value="live_covers")
     val liveCovers: GroupsLiveCovers? = null,
-    @SerializedName(value="admin_level")
-    val adminLevel: GroupsGroupAdminLevel? = null,
-    @SerializedName(value="deactivated")
-    val deactivated: String? = null,
-    @SerializedName(value="finish_date")
-    val finishDate: Int? = null,
+    @SerializedName(value="stories_archive_count")
+    val storiesArchiveCount: Int? = null,
     @SerializedName(value="id")
     val id: Int? = null,
-    @SerializedName(value="is_admin")
-    val isAdmin: BaseBoolInt? = null,
-    @SerializedName(value="is_advertiser")
-    val isAdvertiser: BaseBoolInt? = null,
+    @SerializedName(value="name")
+    val name: String? = null,
+    @SerializedName(value="screen_name")
+    val screenName: String? = null,
     @SerializedName(value="is_closed")
     val isClosed: GroupsGroupIsClosed? = null,
+    @SerializedName(value="type")
+    val type: GroupsGroupType? = null,
+    @SerializedName(value="is_admin")
+    val isAdmin: BaseBoolInt? = null,
+    @SerializedName(value="admin_level")
+    val adminLevel: GroupsGroupAdminLevel? = null,
     @SerializedName(value="is_member")
     val isMember: BaseBoolInt? = null,
-    @SerializedName(value="name")
-    val name: String? = null,
+    @SerializedName(value="is_advertiser")
+    val isAdvertiser: BaseBoolInt? = null,
+    @SerializedName(value="start_date")
+    val startDate: Int? = null,
+    @SerializedName(value="finish_date")
+    val finishDate: Int? = null,
+    @SerializedName(value="deactivated")
+    val deactivated: String? = null,
+    @SerializedName(value="photo_50")
+    val photo50: String? = null,
     @SerializedName(value="photo_100")
     val photo100: String? = null,
     @SerializedName(value="photo_200")
-    val photo200: String? = null,
-    @SerializedName(value="photo_50")
-    val photo50: String? = null,
-    @SerializedName(value="screen_name")
-    val screenName: String? = null,
-    @SerializedName(value="start_date")
-    val startDate: Int? = null,
-    @SerializedName(value="type")
-    val type: GroupsGroupType? = null
+    val photo200: String? = null
 ) {
     enum class Wall(
         val value: Int
@@ -241,12 +274,23 @@ data class GroupsGroupFull(
 
         RESTRICTED(3);
 
-        class Serializer : JsonDeserializer<Wall> {
+        class Serializer : JsonSerializer<Wall>, JsonDeserializer<Wall> {
+            override fun serialize(
+                src: Wall?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): Wall = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Wall {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupFullAgeLimits.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupFullAgeLimits.kt
index 05a560d4ae..6e942dc573 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupFullAgeLimits.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupFullAgeLimits.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,23 @@ enum class GroupsGroupFullAgeLimits(
 
     OVER_18(3);
 
-    class Serializer : JsonDeserializer<GroupsGroupFullAgeLimits> {
+    class Serializer : JsonSerializer<GroupsGroupFullAgeLimits>,
+            JsonDeserializer<GroupsGroupFullAgeLimits> {
+        override fun serialize(
+            src: GroupsGroupFullAgeLimits?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsGroupFullAgeLimits = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsGroupFullAgeLimits {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupFullMainSection.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupFullMainSection.kt
index 286d9db060..5459158230 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupFullMainSection.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupFullMainSection.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -48,12 +53,23 @@ enum class GroupsGroupFullMainSection(
 
     MARKET(5);
 
-    class Serializer : JsonDeserializer<GroupsGroupFullMainSection> {
+    class Serializer : JsonSerializer<GroupsGroupFullMainSection>,
+            JsonDeserializer<GroupsGroupFullMainSection> {
+        override fun serialize(
+            src: GroupsGroupFullMainSection?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsGroupFullMainSection = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsGroupFullMainSection {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupFullMemberStatus.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupFullMemberStatus.kt
index 303672c45a..976e2b7e22 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupFullMemberStatus.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupFullMemberStatus.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -48,12 +53,23 @@ enum class GroupsGroupFullMemberStatus(
 
     INVITED(5);
 
-    class Serializer : JsonDeserializer<GroupsGroupFullMemberStatus> {
+    class Serializer : JsonSerializer<GroupsGroupFullMemberStatus>,
+            JsonDeserializer<GroupsGroupFullMemberStatus> {
+        override fun serialize(
+            src: GroupsGroupFullMemberStatus?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsGroupFullMemberStatus = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsGroupFullMemberStatus {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupIsClosed.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupIsClosed.kt
index 0262d63e38..cbb4459409 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupIsClosed.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupIsClosed.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,22 @@ enum class GroupsGroupIsClosed(
 
     PRIVATE(2);
 
-    class Serializer : JsonDeserializer<GroupsGroupIsClosed> {
+    class Serializer : JsonSerializer<GroupsGroupIsClosed>, JsonDeserializer<GroupsGroupIsClosed> {
+        override fun serialize(
+            src: GroupsGroupIsClosed?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsGroupIsClosed = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsGroupIsClosed {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupMarketCurrency.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupMarketCurrency.kt
index 2e4731a759..c97c35b033 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupMarketCurrency.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupMarketCurrency.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -46,12 +51,23 @@ enum class GroupsGroupMarketCurrency(
 
     US_DOLLARS(840);
 
-    class Serializer : JsonDeserializer<GroupsGroupMarketCurrency> {
+    class Serializer : JsonSerializer<GroupsGroupMarketCurrency>,
+            JsonDeserializer<GroupsGroupMarketCurrency> {
+        override fun serialize(
+            src: GroupsGroupMarketCurrency?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsGroupMarketCurrency = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsGroupMarketCurrency {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupPhotos.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupPhotos.kt
index 0557ac2377..62c96f4da7 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupPhotos.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupPhotos.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,22 @@ enum class GroupsGroupPhotos(
 
     LIMITED(2);
 
-    class Serializer : JsonDeserializer<GroupsGroupPhotos> {
+    class Serializer : JsonSerializer<GroupsGroupPhotos>, JsonDeserializer<GroupsGroupPhotos> {
+        override fun serialize(
+            src: GroupsGroupPhotos?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsGroupPhotos = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsGroupPhotos {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupRole.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupRole.kt
index 27b8be9ec2..c5ba7151fe 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupRole.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupRole.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -44,12 +49,22 @@ enum class GroupsGroupRole(
 
     ADVERTISER("advertiser");
 
-    class Serializer : JsonDeserializer<GroupsGroupRole> {
+    class Serializer : JsonSerializer<GroupsGroupRole>, JsonDeserializer<GroupsGroupRole> {
+        override fun serialize(
+            src: GroupsGroupRole?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsGroupRole = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsGroupRole {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupSubject.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupSubject.kt
index 46dd5d9b7a..31b39a7042 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupSubject.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupSubject.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -120,12 +125,22 @@ enum class GroupsGroupSubject(
 
     DESIGN_AND_GRAPHICS("42");
 
-    class Serializer : JsonDeserializer<GroupsGroupSubject> {
+    class Serializer : JsonSerializer<GroupsGroupSubject>, JsonDeserializer<GroupsGroupSubject> {
+        override fun serialize(
+            src: GroupsGroupSubject?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsGroupSubject = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsGroupSubject {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupSuggestedPrivacy.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupSuggestedPrivacy.kt
new file mode 100644
index 0000000000..39cf235751
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupSuggestedPrivacy.kt
@@ -0,0 +1,69 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.groups.dto
+
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
+import java.lang.reflect.Type
+import kotlin.Int
+
+enum class GroupsGroupSuggestedPrivacy(
+    val value: Int
+) {
+    NONE(0),
+
+    ALL(1),
+
+    SUBSCRIBERS(2);
+
+    class Serializer : JsonSerializer<GroupsGroupSuggestedPrivacy>,
+            JsonDeserializer<GroupsGroupSuggestedPrivacy> {
+        override fun serialize(
+            src: GroupsGroupSuggestedPrivacy?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
+        override fun deserialize(
+            json: JsonElement?,
+            typeOfT: Type?,
+            context: JsonDeserializationContext?
+        ): GroupsGroupSuggestedPrivacy {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
+    }
+}
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupTag.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupTag.kt
index e4d36ac6d8..06af3d3f50 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupTag.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupTag.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import java.lang.reflect.Type
 import kotlin.Int
@@ -94,12 +99,23 @@ data class GroupsGroupTag(
 
         FFC107("ffc107");
 
-        class Serializer : JsonDeserializer<Color> {
+        class Serializer : JsonSerializer<Color>, JsonDeserializer<Color> {
+            override fun serialize(
+                src: Color?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): Color = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Color {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupTopics.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupTopics.kt
index d69495c582..be655cc41f 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupTopics.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupTopics.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,22 @@ enum class GroupsGroupTopics(
 
     LIMITED(2);
 
-    class Serializer : JsonDeserializer<GroupsGroupTopics> {
+    class Serializer : JsonSerializer<GroupsGroupTopics>, JsonDeserializer<GroupsGroupTopics> {
+        override fun serialize(
+            src: GroupsGroupTopics?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsGroupTopics = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsGroupTopics {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupType.kt
index 472512867f..e7db03a485 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,22 @@ enum class GroupsGroupType(
 
     EVENT("event");
 
-    class Serializer : JsonDeserializer<GroupsGroupType> {
+    class Serializer : JsonSerializer<GroupsGroupType>, JsonDeserializer<GroupsGroupType> {
+        override fun serialize(
+            src: GroupsGroupType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsGroupType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsGroupType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupVideo.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupVideo.kt
index 5e784c524a..81076bfe5c 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupVideo.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupVideo.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,22 @@ enum class GroupsGroupVideo(
 
     LIMITED(2);
 
-    class Serializer : JsonDeserializer<GroupsGroupVideo> {
+    class Serializer : JsonSerializer<GroupsGroupVideo>, JsonDeserializer<GroupsGroupVideo> {
+        override fun serialize(
+            src: GroupsGroupVideo?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsGroupVideo = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsGroupVideo {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupWall.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupWall.kt
index 4806037a73..271cfdf85e 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupWall.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupWall.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -44,12 +49,22 @@ enum class GroupsGroupWall(
 
     CLOSED(3);
 
-    class Serializer : JsonDeserializer<GroupsGroupWall> {
+    class Serializer : JsonSerializer<GroupsGroupWall>, JsonDeserializer<GroupsGroupWall> {
+        override fun serialize(
+            src: GroupsGroupWall?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsGroupWall = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsGroupWall {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupWiki.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupWiki.kt
index 706ae48946..9fe854b740 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupWiki.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsGroupWiki.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,22 @@ enum class GroupsGroupWiki(
 
     LIMITED(2);
 
-    class Serializer : JsonDeserializer<GroupsGroupWiki> {
+    class Serializer : JsonSerializer<GroupsGroupWiki>, JsonDeserializer<GroupsGroupWiki> {
+        override fun serialize(
+            src: GroupsGroupWiki?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsGroupWiki = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsGroupWiki {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsLongPollEvents.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsLongPollEvents.kt
index 6269e81a53..6068476ea6 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsLongPollEvents.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsLongPollEvents.kt
@@ -72,6 +72,15 @@ import com.vk.sdk.api.base.dto.BaseBoolInt
  * @param wallReplyRestore no description
  * @param wallRepost no description
  * @param leadFormsNew no description
+ * @param marketOrderNew no description
+ * @param marketOrderEdit no description
+ * @param donutSubscriptionCreate no description
+ * @param donutSubscriptionProlonged no description
+ * @param donutSubscriptionCancelled no description
+ * @param donutSubscriptionExpired no description
+ * @param donutSubscriptionPriceChanged no description
+ * @param donutMoneyWithdraw no description
+ * @param donutMoneyWithdrawError no description
  */
 data class GroupsLongPollEvents(
     @SerializedName(value="audio_new")
@@ -155,5 +164,23 @@ data class GroupsLongPollEvents(
     @SerializedName(value="wall_repost")
     val wallRepost: BaseBoolInt,
     @SerializedName(value="lead_forms_new")
-    val leadFormsNew: BaseBoolInt? = null
+    val leadFormsNew: BaseBoolInt? = null,
+    @SerializedName(value="market_order_new")
+    val marketOrderNew: BaseBoolInt? = null,
+    @SerializedName(value="market_order_edit")
+    val marketOrderEdit: BaseBoolInt? = null,
+    @SerializedName(value="donut_subscription_create")
+    val donutSubscriptionCreate: BaseBoolInt? = null,
+    @SerializedName(value="donut_subscription_prolonged")
+    val donutSubscriptionProlonged: BaseBoolInt? = null,
+    @SerializedName(value="donut_subscription_cancelled")
+    val donutSubscriptionCancelled: BaseBoolInt? = null,
+    @SerializedName(value="donut_subscription_expired")
+    val donutSubscriptionExpired: BaseBoolInt? = null,
+    @SerializedName(value="donut_subscription_price_changed")
+    val donutSubscriptionPriceChanged: BaseBoolInt? = null,
+    @SerializedName(value="donut_money_withdraw")
+    val donutMoneyWithdraw: BaseBoolInt? = null,
+    @SerializedName(value="donut_money_withdraw_error")
+    val donutMoneyWithdrawError: BaseBoolInt? = null
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsMarketState.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsMarketState.kt
index ec45ce8fe8..21dd2b915c 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsMarketState.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsMarketState.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,22 @@ enum class GroupsMarketState(
 
     ADVANCED("advanced");
 
-    class Serializer : JsonDeserializer<GroupsMarketState> {
+    class Serializer : JsonSerializer<GroupsMarketState>, JsonDeserializer<GroupsMarketState> {
+        override fun serialize(
+            src: GroupsMarketState?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsMarketState = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsMarketState {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsMemberRolePermission.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsMemberRolePermission.kt
index 4eff58e362..35bca5a74b 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsMemberRolePermission.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsMemberRolePermission.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -38,12 +43,23 @@ enum class GroupsMemberRolePermission(
 ) {
     ADS("ads");
 
-    class Serializer : JsonDeserializer<GroupsMemberRolePermission> {
+    class Serializer : JsonSerializer<GroupsMemberRolePermission>,
+            JsonDeserializer<GroupsMemberRolePermission> {
+        override fun serialize(
+            src: GroupsMemberRolePermission?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsMemberRolePermission = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsMemberRolePermission {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsMemberRoleStatus.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsMemberRoleStatus.kt
index ff9c27935f..ec6b5dc896 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsMemberRoleStatus.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsMemberRoleStatus.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -44,12 +49,23 @@ enum class GroupsMemberRoleStatus(
 
     CREATOR("creator");
 
-    class Serializer : JsonDeserializer<GroupsMemberRoleStatus> {
+    class Serializer : JsonSerializer<GroupsMemberRoleStatus>,
+            JsonDeserializer<GroupsMemberRoleStatus> {
+        override fun serialize(
+            src: GroupsMemberRoleStatus?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsMemberRoleStatus = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsMemberRoleStatus {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsOnlineStatusType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsOnlineStatusType.kt
index 8725f31cf6..d4e2c0611e 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsOnlineStatusType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsOnlineStatusType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,23 @@ enum class GroupsOnlineStatusType(
 
     ANSWER_MARK("answer_mark");
 
-    class Serializer : JsonDeserializer<GroupsOnlineStatusType> {
+    class Serializer : JsonSerializer<GroupsOnlineStatusType>,
+            JsonDeserializer<GroupsOnlineStatusType> {
+        override fun serialize(
+            src: GroupsOnlineStatusType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsOnlineStatusType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsOnlineStatusType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsOwnerXtrBanInfoType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsOwnerXtrBanInfoType.kt
index 560c8c3a49..2277c98a90 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsOwnerXtrBanInfoType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsOwnerXtrBanInfoType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,23 @@ enum class GroupsOwnerXtrBanInfoType(
 
     PROFILE("profile");
 
-    class Serializer : JsonDeserializer<GroupsOwnerXtrBanInfoType> {
+    class Serializer : JsonSerializer<GroupsOwnerXtrBanInfoType>,
+            JsonDeserializer<GroupsOwnerXtrBanInfoType> {
+        override fun serialize(
+            src: GroupsOwnerXtrBanInfoType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsOwnerXtrBanInfoType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsOwnerXtrBanInfoType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsProfileItem.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsProfileItem.kt
new file mode 100644
index 0000000000..f314e8a6f3
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsProfileItem.kt
@@ -0,0 +1,46 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.groups.dto
+
+import com.google.gson.annotations.SerializedName
+import kotlin.Int
+import kotlin.String
+
+/**
+ * @param id User id
+ * @param photo50 Url for user photo
+ * @param photo100 Url for user photo
+ */
+data class GroupsProfileItem(
+    @SerializedName(value="id")
+    val id: Int,
+    @SerializedName(value="photo_50")
+    val photo50: String,
+    @SerializedName(value="photo_100")
+    val photo100: String
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsRoleOptions.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsRoleOptions.kt
index bbdfff0eca..0a5226c56d 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsRoleOptions.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsRoleOptions.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -44,12 +49,22 @@ enum class GroupsRoleOptions(
 
     CREATOR("creator");
 
-    class Serializer : JsonDeserializer<GroupsRoleOptions> {
+    class Serializer : JsonSerializer<GroupsRoleOptions>, JsonDeserializer<GroupsRoleOptions> {
+        override fun serialize(
+            src: GroupsRoleOptions?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsRoleOptions = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsRoleOptions {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsSearchSort.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsSearchSort.kt
index e27a02ce4c..5793e16bdb 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsSearchSort.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsSearchSort.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -48,12 +53,22 @@ enum class GroupsSearchSort(
 
     ENTRIES(5);
 
-    class Serializer : JsonDeserializer<GroupsSearchSort> {
+    class Serializer : JsonSerializer<GroupsSearchSort>, JsonDeserializer<GroupsSearchSort> {
+        override fun serialize(
+            src: GroupsSearchSort?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsSearchSort = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsSearchSort {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsSearchType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsSearchType.kt
index 7c00a23327..4203318dce 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsSearchType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsSearchType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,22 @@ enum class GroupsSearchType(
 
     EVENT("event");
 
-    class Serializer : JsonDeserializer<GroupsSearchType> {
+    class Serializer : JsonSerializer<GroupsSearchType>, JsonDeserializer<GroupsSearchType> {
+        override fun serialize(
+            src: GroupsSearchType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsSearchType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsSearchType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsSettingsTwitter.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsSettingsTwitter.kt
index 01a0215228..43f15c42a6 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsSettingsTwitter.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsSettingsTwitter.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import java.lang.reflect.Type
 import kotlin.String
@@ -51,12 +56,23 @@ data class GroupsSettingsTwitter(
 
         SYNC("sync");
 
-        class Serializer : JsonDeserializer<Status> {
+        class Serializer : JsonSerializer<Status>, JsonDeserializer<Status> {
+            override fun serialize(
+                src: Status?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): Status = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Status {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsTagAddTagColor.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsTagAddTagColor.kt
index d17d9865f8..36348532e2 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsTagAddTagColor.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsTagAddTagColor.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -76,12 +81,23 @@ enum class GroupsTagAddTagColor(
 
     FFC107("ffc107");
 
-    class Serializer : JsonDeserializer<GroupsTagAddTagColor> {
+    class Serializer : JsonSerializer<GroupsTagAddTagColor>, JsonDeserializer<GroupsTagAddTagColor>
+            {
+        override fun serialize(
+            src: GroupsTagAddTagColor?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsTagAddTagColor = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsTagAddTagColor {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsTagBindAct.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsTagBindAct.kt
index cb31c3aafc..6a4783b03d 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsTagBindAct.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsTagBindAct.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,22 @@ enum class GroupsTagBindAct(
 
     UNBIND("unbind");
 
-    class Serializer : JsonDeserializer<GroupsTagBindAct> {
+    class Serializer : JsonSerializer<GroupsTagBindAct>, JsonDeserializer<GroupsTagBindAct> {
+        override fun serialize(
+            src: GroupsTagBindAct?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsTagBindAct = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsTagBindAct {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsToggleMarketState.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsToggleMarketState.kt
index d9944a3241..2d4008f199 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsToggleMarketState.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsToggleMarketState.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.groups.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,23 @@ enum class GroupsToggleMarketState(
 
     NONE("none");
 
-    class Serializer : JsonDeserializer<GroupsToggleMarketState> {
+    class Serializer : JsonSerializer<GroupsToggleMarketState>,
+            JsonDeserializer<GroupsToggleMarketState> {
+        override fun serialize(
+            src: GroupsToggleMarketState?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): GroupsToggleMarketState = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): GroupsToggleMarketState {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsUserXtrRole.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsUserXtrRole.kt
index 10e330b1ef..eabd166f4f 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsUserXtrRole.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/dto/GroupsUserXtrRole.kt
@@ -27,6 +27,14 @@
 // *********************************************************************
 package com.vk.sdk.api.groups.dto
 
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import com.vk.sdk.api.audio.dto.AudioAudio
 import com.vk.sdk.api.base.dto.BaseBoolInt
@@ -37,6 +45,7 @@ import com.vk.sdk.api.base.dto.BaseSex
 import com.vk.sdk.api.friends.dto.FriendsFriendStatusStatus
 import com.vk.sdk.api.friends.dto.FriendsRequestsMutual
 import com.vk.sdk.api.owner.dto.OwnerState
+import com.vk.sdk.api.photos.dto.PhotosPhoto
 import com.vk.sdk.api.users.dto.UsersCareer
 import com.vk.sdk.api.users.dto.UsersExports
 import com.vk.sdk.api.users.dto.UsersLastSeen
@@ -47,9 +56,14 @@ import com.vk.sdk.api.users.dto.UsersPersonal
 import com.vk.sdk.api.users.dto.UsersRelative
 import com.vk.sdk.api.users.dto.UsersSchool
 import com.vk.sdk.api.users.dto.UsersUniversity
+import com.vk.sdk.api.users.dto.UsersUserCounters
 import com.vk.sdk.api.users.dto.UsersUserMin
 import com.vk.sdk.api.users.dto.UsersUserRelation
+import com.vk.sdk.api.users.dto.UsersUserType
+import com.vk.sdk.api.video.dto.VideoLiveInfo
+import java.lang.reflect.Type
 import kotlin.Boolean
+import kotlin.Float
 import kotlin.Int
 import kotlin.String
 import kotlin.collections.List
@@ -70,6 +84,7 @@ import kotlin.collections.List
  * @param lastNameAbl User's last name in prepositional case
  * @param nickname User nickname
  * @param maidenName User maiden name
+ * @param contactName User contact name
  * @param domain Domain name of the user's page
  * @param bdate User's date of birth
  * @param city no description
@@ -89,6 +104,38 @@ import kotlin.collections.List
  * @param canPost Information whether current user can post on the user's wall
  * @param canSeeAllPosts Information whether current user can see other users' audio on the wall
  * @param canSeeAudio Information whether current user can see the user's audio
+ * @param type no description
+ * @param email no description
+ * @param skype no description
+ * @param facebook no description
+ * @param facebookName no description
+ * @param twitter no description
+ * @param livejournal no description
+ * @param instagram no description
+ * @param test no description
+ * @param videoLive no description
+ * @param isVideoLiveNotificationsBlocked no description
+ * @param isService no description
+ * @param serviceDescription no description
+ * @param photo no description
+ * @param photoBig no description
+ * @param photo400 no description
+ * @param photoMaxSize no description
+ * @param language no description
+ * @param storiesArchiveCount no description
+ * @param wallDefault no description
+ * @param canCall Information whether current user can call
+ * @param canSeeWishes Information whether current user can see the user's wishes
+ * @param canSeeGifts Information whether current user can see the user's gifts
+ * @param interests no description
+ * @param books no description
+ * @param tv no description
+ * @param quotes no description
+ * @param about no description
+ * @param games no description
+ * @param movies no description
+ * @param activities no description
+ * @param music no description
  * @param canWritePrivateMessage Information whether current user can write private message
  * @param canSendFriendRequest Information whether current user can send a friend request
  * @param canBeInvitedGroup Information whether current user can be invited to the community
@@ -104,6 +151,7 @@ import kotlin.collections.List
  * @param followersCount Number of user's followers
  * @param videoLiveLevel User level in live streams achievements
  * @param videoLiveCount Number of user's live streams
+ * @param clipsCount Number of user's clips
  * @param blacklisted Information whether current user is in the requested user's blacklist.
  * @param blacklistedByMe Information whether the requested user is in current user's blacklist
  * @param isFavorite Information whether the requested user is in faves of current user
@@ -115,6 +163,7 @@ import kotlin.collections.List
  * @param military no description
  * @param university University ID
  * @param universityName University name
+ * @param universityGroupId no description
  * @param faculty Faculty ID
  * @param facultyName Faculty name
  * @param graduation Graduation year
@@ -130,6 +179,11 @@ import kotlin.collections.List
  * @param isSubscribedPodcasts Information whether current user is subscribed to podcasts
  * @param canSubscribePodcasts Owner in whitelist or not
  * @param canSubscribePosts Can subscribe to wall
+ * @param counters no description
+ * @param accessKey no description
+ * @param canUploadDoc no description
+ * @param hash no description
+ * @param hasEmail no description
  * @param sex User sex
  * @param screenName Domain name of the user's page
  * @param photo50 URL of square photo of the user with 50 pixels in width
@@ -181,6 +235,8 @@ data class GroupsUserXtrRole(
     val nickname: String? = null,
     @SerializedName(value="maiden_name")
     val maidenName: String? = null,
+    @SerializedName(value="contact_name")
+    val contactName: String? = null,
     @SerializedName(value="domain")
     val domain: String? = null,
     @SerializedName(value="bdate")
@@ -190,7 +246,7 @@ data class GroupsUserXtrRole(
     @SerializedName(value="country")
     val country: BaseCountry? = null,
     @SerializedName(value="timezone")
-    val timezone: Int? = null,
+    val timezone: Float? = null,
     @SerializedName(value="owner_state")
     val ownerState: OwnerState? = null,
     @SerializedName(value="photo_200")
@@ -219,6 +275,70 @@ data class GroupsUserXtrRole(
     val canSeeAllPosts: BaseBoolInt? = null,
     @SerializedName(value="can_see_audio")
     val canSeeAudio: BaseBoolInt? = null,
+    @SerializedName(value="type")
+    val type: UsersUserType? = null,
+    @SerializedName(value="email")
+    val email: String? = null,
+    @SerializedName(value="skype")
+    val skype: String? = null,
+    @SerializedName(value="facebook")
+    val facebook: String? = null,
+    @SerializedName(value="facebook_name")
+    val facebookName: String? = null,
+    @SerializedName(value="twitter")
+    val twitter: String? = null,
+    @SerializedName(value="livejournal")
+    val livejournal: String? = null,
+    @SerializedName(value="instagram")
+    val instagram: String? = null,
+    @SerializedName(value="test")
+    val test: BaseBoolInt? = null,
+    @SerializedName(value="video_live")
+    val videoLive: VideoLiveInfo? = null,
+    @SerializedName(value="is_video_live_notifications_blocked")
+    val isVideoLiveNotificationsBlocked: BaseBoolInt? = null,
+    @SerializedName(value="is_service")
+    val isService: Boolean? = null,
+    @SerializedName(value="service_description")
+    val serviceDescription: String? = null,
+    @SerializedName(value="photo")
+    val photo: String? = null,
+    @SerializedName(value="photo_big")
+    val photoBig: String? = null,
+    @SerializedName(value="photo_400")
+    val photo400: String? = null,
+    @SerializedName(value="photo_max_size")
+    val photoMaxSize: PhotosPhoto? = null,
+    @SerializedName(value="language")
+    val language: String? = null,
+    @SerializedName(value="stories_archive_count")
+    val storiesArchiveCount: Int? = null,
+    @SerializedName(value="wall_default")
+    val wallDefault: WallDefault? = null,
+    @SerializedName(value="can_call")
+    val canCall: Boolean? = null,
+    @SerializedName(value="can_see_wishes")
+    val canSeeWishes: Boolean? = null,
+    @SerializedName(value="can_see_gifts")
+    val canSeeGifts: BaseBoolInt? = null,
+    @SerializedName(value="interests")
+    val interests: String? = null,
+    @SerializedName(value="books")
+    val books: String? = null,
+    @SerializedName(value="tv")
+    val tv: String? = null,
+    @SerializedName(value="quotes")
+    val quotes: String? = null,
+    @SerializedName(value="about")
+    val about: String? = null,
+    @SerializedName(value="games")
+    val games: String? = null,
+    @SerializedName(value="movies")
+    val movies: String? = null,
+    @SerializedName(value="activities")
+    val activities: String? = null,
+    @SerializedName(value="music")
+    val music: String? = null,
     @SerializedName(value="can_write_private_message")
     val canWritePrivateMessage: BaseBoolInt? = null,
     @SerializedName(value="can_send_friend_request")
@@ -249,6 +369,8 @@ data class GroupsUserXtrRole(
     val videoLiveLevel: Int? = null,
     @SerializedName(value="video_live_count")
     val videoLiveCount: Int? = null,
+    @SerializedName(value="clips_count")
+    val clipsCount: Int? = null,
     @SerializedName(value="blacklisted")
     val blacklisted: BaseBoolInt? = null,
     @SerializedName(value="blacklisted_by_me")
@@ -269,6 +391,8 @@ data class GroupsUserXtrRole(
     val university: Int? = null,
     @SerializedName(value="university_name")
     val universityName: String? = null,
+    @SerializedName(value="university_group_id")
+    val universityGroupId: Int? = null,
     @SerializedName(value="faculty")
     val faculty: Int? = null,
     @SerializedName(value="faculty_name")
@@ -299,6 +423,16 @@ data class GroupsUserXtrRole(
     val canSubscribePodcasts: Boolean? = null,
     @SerializedName(value="can_subscribe_posts")
     val canSubscribePosts: Boolean? = null,
+    @SerializedName(value="counters")
+    val counters: UsersUserCounters? = null,
+    @SerializedName(value="access_key")
+    val accessKey: String? = null,
+    @SerializedName(value="can_upload_doc")
+    val canUploadDoc: BaseBoolInt? = null,
+    @SerializedName(value="hash")
+    val hash: String? = null,
+    @SerializedName(value="has_email")
+    val hasEmail: Boolean? = null,
     @SerializedName(value="sex")
     val sex: BaseSex? = null,
     @SerializedName(value="screen_name")
@@ -337,4 +471,31 @@ data class GroupsUserXtrRole(
     val canAccessClosed: Boolean? = null,
     @SerializedName(value="is_closed")
     val isClosed: Boolean? = null
-)
+) {
+    enum class WallDefault(
+        val value: String
+    ) {
+        OWNER("owner"),
+
+        ALL("all");
+
+        class Serializer : JsonSerializer<WallDefault>, JsonDeserializer<WallDefault> {
+            override fun serialize(
+                src: WallDefault?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
+            override fun deserialize(
+                json: JsonElement?,
+                typeOfT: Type?,
+                context: JsonDeserializationContext?
+            ): WallDefault {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
+        }
+    }
+}
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/methods/GroupsGetById.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/methods/GroupsGetById.kt
index 7c2d69c337..6e09631b8c 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/methods/GroupsGetById.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/methods/GroupsGetById.kt
@@ -31,7 +31,7 @@ import com.vk.sdk.api.ApiRequestBase
 import com.vk.sdk.api.GsonHolder
 import com.vk.sdk.api.groups.dto.GroupsFields
 import com.vk.sdk.api.groups.dto.GroupsGroupFull
-import com.vk.sdk.api.groups.responses.GroupsGetByIdResponse
+import com.vk.sdk.api.groups.responses.GroupsGetByIdLegacyResponse
 import kotlin.String
 import kotlin.collections.List
 import org.json.JSONObject
@@ -60,5 +60,5 @@ class GroupsGetById(
     }
 
     override fun parse(r: JSONObject): List<GroupsGroupFull> =
-            GsonHolder.gson.fromJson(r.toString(), GroupsGetByIdResponse::class.java).response
+            GsonHolder.gson.fromJson(r.toString(), GroupsGetByIdLegacyResponse::class.java).response
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/methods/GroupsSetCallbackSettings.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/methods/GroupsSetCallbackSettings.kt
index 67facdb5f5..ff5a28ed63 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/methods/GroupsSetCallbackSettings.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/methods/GroupsSetCallbackSettings.kt
@@ -73,6 +73,8 @@ import org.json.JSONObject
  * @param marketCommentEdit A market comment has been edited ('0' - disabled, '1' - enabled). 
  * @param marketCommentDelete A market comment has been deleted ('0' - disabled, '1' - enabled). 
  * @param marketCommentRestore A market comment has been restored ('0' - disabled, '1' - enabled). 
+ * @param marketOrderNew  
+ * @param marketOrderEdit  
  * @param pollVoteNew A vote in a public poll has been added ('0' - disabled, '1' - enabled). 
  * @param groupJoin Joined community notifications ('0' - disabled, '1' - enabled). 
  * @param groupLeave Left community notifications ('0' - disabled, '1' - enabled). 
@@ -85,6 +87,13 @@ import org.json.JSONObject
  * @param likeAdd  
  * @param likeRemove  
  * @param messageEvent  
+ * @param donutSubscriptionCreate  
+ * @param donutSubscriptionProlonged  
+ * @param donutSubscriptionCancelled  
+ * @param donutSubscriptionPriceChanged  
+ * @param donutSubscriptionExpired  
+ * @param donutMoneyWithdraw  
+ * @param donutMoneyWithdrawError  
  */
 class GroupsSetCallbackSettings(
     private val groupId: Int,
@@ -121,6 +130,8 @@ class GroupsSetCallbackSettings(
     private val marketCommentEdit: Boolean? = null,
     private val marketCommentDelete: Boolean? = null,
     private val marketCommentRestore: Boolean? = null,
+    private val marketOrderNew: Boolean? = null,
+    private val marketOrderEdit: Boolean? = null,
     private val pollVoteNew: Boolean? = null,
     private val groupJoin: Boolean? = null,
     private val groupLeave: Boolean? = null,
@@ -132,7 +143,14 @@ class GroupsSetCallbackSettings(
     private val leadFormsNew: Boolean? = null,
     private val likeAdd: Boolean? = null,
     private val likeRemove: Boolean? = null,
-    private val messageEvent: Boolean? = null
+    private val messageEvent: Boolean? = null,
+    private val donutSubscriptionCreate: Boolean? = null,
+    private val donutSubscriptionProlonged: Boolean? = null,
+    private val donutSubscriptionCancelled: Boolean? = null,
+    private val donutSubscriptionPriceChanged: Boolean? = null,
+    private val donutSubscriptionExpired: Boolean? = null,
+    private val donutMoneyWithdraw: Boolean? = null,
+    private val donutMoneyWithdrawError: Boolean? = null
 ) : ApiRequestBase<BaseOkResponseDto>(methodName = "groups.setCallbackSettings") {
     init {
         addParam("group_id", groupId)
@@ -235,6 +253,12 @@ class GroupsSetCallbackSettings(
         marketCommentRestore?.let { value ->
             addParam("market_comment_restore", if (value) 1 else 0)
         }
+        marketOrderNew?.let { value ->
+            addParam("market_order_new", if (value) 1 else 0)
+        }
+        marketOrderEdit?.let { value ->
+            addParam("market_order_edit", if (value) 1 else 0)
+        }
         pollVoteNew?.let { value ->
             addParam("poll_vote_new", if (value) 1 else 0)
         }
@@ -271,6 +295,27 @@ class GroupsSetCallbackSettings(
         messageEvent?.let { value ->
             addParam("message_event", if (value) 1 else 0)
         }
+        donutSubscriptionCreate?.let { value ->
+            addParam("donut_subscription_create", if (value) 1 else 0)
+        }
+        donutSubscriptionProlonged?.let { value ->
+            addParam("donut_subscription_prolonged", if (value) 1 else 0)
+        }
+        donutSubscriptionCancelled?.let { value ->
+            addParam("donut_subscription_cancelled", if (value) 1 else 0)
+        }
+        donutSubscriptionPriceChanged?.let { value ->
+            addParam("donut_subscription_price_changed", if (value) 1 else 0)
+        }
+        donutSubscriptionExpired?.let { value ->
+            addParam("donut_subscription_expired", if (value) 1 else 0)
+        }
+        donutMoneyWithdraw?.let { value ->
+            addParam("donut_money_withdraw", if (value) 1 else 0)
+        }
+        donutMoneyWithdrawError?.let { value ->
+            addParam("donut_money_withdraw_error", if (value) 1 else 0)
+        }
     }
 
     override fun parse(r: JSONObject): BaseOkResponseDto = GsonHolder.gson.fromJson(r.toString(),
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/methods/GroupsSetLongPollSettings.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/methods/GroupsSetLongPollSettings.kt
index 03a3dd7e79..497e1b1f08 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/methods/GroupsSetLongPollSettings.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/methods/GroupsSetLongPollSettings.kt
@@ -84,6 +84,13 @@ import org.json.JSONObject
  * @param likeAdd  
  * @param likeRemove  
  * @param messageEvent  
+ * @param donutSubscriptionCreate  
+ * @param donutSubscriptionProlonged  
+ * @param donutSubscriptionCancelled  
+ * @param donutSubscriptionPriceChanged  
+ * @param donutSubscriptionExpired  
+ * @param donutMoneyWithdraw  
+ * @param donutMoneyWithdrawError  
  */
 class GroupsSetLongPollSettings(
     private val groupId: Int,
@@ -130,7 +137,14 @@ class GroupsSetLongPollSettings(
     private val userUnblock: Boolean? = null,
     private val likeAdd: Boolean? = null,
     private val likeRemove: Boolean? = null,
-    private val messageEvent: Boolean? = null
+    private val messageEvent: Boolean? = null,
+    private val donutSubscriptionCreate: Boolean? = null,
+    private val donutSubscriptionProlonged: Boolean? = null,
+    private val donutSubscriptionCancelled: Boolean? = null,
+    private val donutSubscriptionPriceChanged: Boolean? = null,
+    private val donutSubscriptionExpired: Boolean? = null,
+    private val donutMoneyWithdraw: Boolean? = null,
+    private val donutMoneyWithdrawError: Boolean? = null
 ) : ApiRequestBase<BaseOkResponseDto>(methodName = "groups.setLongPollSettings") {
     init {
         addParam("group_id", groupId)
@@ -266,6 +280,27 @@ class GroupsSetLongPollSettings(
         messageEvent?.let { value ->
             addParam("message_event", if (value) 1 else 0)
         }
+        donutSubscriptionCreate?.let { value ->
+            addParam("donut_subscription_create", if (value) 1 else 0)
+        }
+        donutSubscriptionProlonged?.let { value ->
+            addParam("donut_subscription_prolonged", if (value) 1 else 0)
+        }
+        donutSubscriptionCancelled?.let { value ->
+            addParam("donut_subscription_cancelled", if (value) 1 else 0)
+        }
+        donutSubscriptionPriceChanged?.let { value ->
+            addParam("donut_subscription_price_changed", if (value) 1 else 0)
+        }
+        donutSubscriptionExpired?.let { value ->
+            addParam("donut_subscription_expired", if (value) 1 else 0)
+        }
+        donutMoneyWithdraw?.let { value ->
+            addParam("donut_money_withdraw", if (value) 1 else 0)
+        }
+        donutMoneyWithdrawError?.let { value ->
+            addParam("donut_money_withdraw_error", if (value) 1 else 0)
+        }
     }
 
     override fun parse(r: JSONObject): BaseOkResponseDto = GsonHolder.gson.fromJson(r.toString(),
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/responses/GroupsGetByIdLegacyResponse.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/responses/GroupsGetByIdLegacyResponse.kt
new file mode 100644
index 0000000000..32e4fa9a7a
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/responses/GroupsGetByIdLegacyResponse.kt
@@ -0,0 +1,40 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.groups.responses
+
+import com.google.gson.annotations.SerializedName
+import com.vk.sdk.api.groups.dto.GroupsGroupFull
+import kotlin.collections.List
+
+/**
+ * @param response no description
+ */
+data class GroupsGetByIdLegacyResponse(
+    @SerializedName(value="response")
+    val response: List<GroupsGroupFull>
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/responses/GroupsGetByIdResponse.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/responses/GroupsGetByIdResponse.kt
index 90533c512d..c09e3c8908 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/responses/GroupsGetByIdResponse.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/groups/responses/GroupsGetByIdResponse.kt
@@ -28,13 +28,12 @@
 package com.vk.sdk.api.groups.responses
 
 import com.google.gson.annotations.SerializedName
-import com.vk.sdk.api.groups.dto.GroupsGroupFull
-import kotlin.collections.List
+import com.vk.sdk.api.groups.dto.GroupsGetByIdResponseDto
 
 /**
  * @param response no description
  */
 data class GroupsGetByIdResponse(
     @SerializedName(value="response")
-    val response: List<GroupsGroupFull>
+    val response: GroupsGetByIdResponseDto
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/likes/dto/LikesGetListFilter.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/likes/dto/LikesGetListFilter.kt
index 73608cb8f9..72a3ba57f8 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/likes/dto/LikesGetListFilter.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/likes/dto/LikesGetListFilter.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.likes.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,22 @@ enum class LikesGetListFilter(
 
     COPIES("copies");
 
-    class Serializer : JsonDeserializer<LikesGetListFilter> {
+    class Serializer : JsonSerializer<LikesGetListFilter>, JsonDeserializer<LikesGetListFilter> {
+        override fun serialize(
+            src: LikesGetListFilter?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): LikesGetListFilter = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): LikesGetListFilter {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/likes/dto/LikesGetListFriendsOnly.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/likes/dto/LikesGetListFriendsOnly.kt
index 34922f4b95..eab2886a07 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/likes/dto/LikesGetListFriendsOnly.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/likes/dto/LikesGetListFriendsOnly.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.likes.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -44,12 +49,23 @@ enum class LikesGetListFriendsOnly(
 
     THREE_(3);
 
-    class Serializer : JsonDeserializer<LikesGetListFriendsOnly> {
+    class Serializer : JsonSerializer<LikesGetListFriendsOnly>,
+            JsonDeserializer<LikesGetListFriendsOnly> {
+        override fun serialize(
+            src: LikesGetListFriendsOnly?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): LikesGetListFriendsOnly = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): LikesGetListFriendsOnly {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/likes/dto/LikesType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/likes/dto/LikesType.kt
index e35b8495c7..48f6e91b4a 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/likes/dto/LikesType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/likes/dto/LikesType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.likes.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -58,13 +63,26 @@ enum class LikesType(
 
     MARKET_COMMENT("market_comment"),
 
-    SITEPAGE("sitepage");
+    SITEPAGE("sitepage"),
+
+    BUSINESS_PAGE("business_page");
+
+    class Serializer : JsonSerializer<LikesType>, JsonDeserializer<LikesType> {
+        override fun serialize(
+            src: LikesType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
 
-    class Serializer : JsonDeserializer<LikesType> {
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): LikesType = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+        ): LikesType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/likes/methods/LikesGetList.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/likes/methods/LikesGetList.kt
index 0069f43183..db5dd268c0 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/likes/methods/LikesGetList.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/likes/methods/LikesGetList.kt
@@ -62,7 +62,7 @@ import org.json.JSONObject
  * information (default) 
  * @param offset Offset needed to select a specific subset of users. minimum 0
  * @param count Number of user IDs to return (maximum '1000'). Default is '100' if 'friends_only' is
- * set to '0', otherwise, the default is '10' if 'friends_only' is set to '1'. minimum 0
+ * set to '0', otherwise, the default is '10' if 'friends_only' is set to '1'. minimum 0 maximum 1000
  * @param skipOwn  
  */
 class LikesGetList(
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/likes/methods/LikesGetListExtended.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/likes/methods/LikesGetListExtended.kt
index 887e542ee6..1d34f8b357 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/likes/methods/LikesGetListExtended.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/likes/methods/LikesGetListExtended.kt
@@ -62,7 +62,7 @@ import org.json.JSONObject
  * information (default) 
  * @param offset Offset needed to select a specific subset of users. minimum 0
  * @param count Number of user IDs to return (maximum '1000'). Default is '100' if 'friends_only' is
- * set to '0', otherwise, the default is '10' if 'friends_only' is set to '1'. minimum 0
+ * set to '0', otherwise, the default is '10' if 'friends_only' is set to '1'. minimum 0 maximum 1000
  * @param skipOwn  
  */
 class LikesGetListExtended(
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketGetCategoriesNewResponseDto.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketGetCategoriesNewResponseDto.kt
new file mode 100644
index 0000000000..0622440292
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketGetCategoriesNewResponseDto.kt
@@ -0,0 +1,39 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.market.dto
+
+import com.google.gson.annotations.SerializedName
+import kotlin.collections.List
+
+/**
+ * @param items no description
+ */
+data class MarketGetCategoriesNewResponseDto(
+    @SerializedName(value="items")
+    val items: List<MarketMarketCategoryTree>
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketGetCommentsSort.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketGetCommentsSort.kt
index dfef53b3b9..1daff8cfce 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketGetCommentsSort.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketGetCommentsSort.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.market.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,23 @@ enum class MarketGetCommentsSort(
 
     NEW_TO_OLD("desc");
 
-    class Serializer : JsonDeserializer<MarketGetCommentsSort> {
+    class Serializer : JsonSerializer<MarketGetCommentsSort>,
+            JsonDeserializer<MarketGetCommentsSort> {
+        override fun serialize(
+            src: MarketGetCommentsSort?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): MarketGetCommentsSort = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): MarketGetCommentsSort {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketCategory.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketCategory.kt
index 1d16aa7846..4e85c3d226 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketCategory.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketCategory.kt
@@ -38,9 +38,9 @@ import kotlin.String
  */
 data class MarketMarketCategory(
     @SerializedName(value="id")
-    val id: Int,
+    val id: Int? = null,
     @SerializedName(value="name")
-    val name: String,
+    val name: String? = null,
     @SerializedName(value="section")
-    val section: MarketSection
+    val section: MarketSection? = null
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketCategoryNested.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketCategoryNested.kt
new file mode 100644
index 0000000000..1a9924c82d
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketCategoryNested.kt
@@ -0,0 +1,46 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.market.dto
+
+import com.google.gson.annotations.SerializedName
+import kotlin.Int
+import kotlin.String
+
+/**
+ * @param id Category ID
+ * @param name Category name
+ * @param parent no description
+ */
+data class MarketMarketCategoryNested(
+    @SerializedName(value="id")
+    val id: Int,
+    @SerializedName(value="name")
+    val name: String,
+    @SerializedName(value="parent")
+    val parent: MarketMarketCategoryNested? = null
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketCategoryOld.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketCategoryOld.kt
new file mode 100644
index 0000000000..fdf002b2ed
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketCategoryOld.kt
@@ -0,0 +1,46 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.market.dto
+
+import com.google.gson.annotations.SerializedName
+import kotlin.Int
+import kotlin.String
+
+/**
+ * @param id Category ID
+ * @param name Category name
+ * @param section no description
+ */
+data class MarketMarketCategoryOld(
+    @SerializedName(value="id")
+    val id: Int,
+    @SerializedName(value="name")
+    val name: String,
+    @SerializedName(value="section")
+    val section: MarketSection
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketCategoryTree.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketCategoryTree.kt
new file mode 100644
index 0000000000..d5379e961e
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketCategoryTree.kt
@@ -0,0 +1,47 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.market.dto
+
+import com.google.gson.annotations.SerializedName
+import kotlin.Int
+import kotlin.String
+import kotlin.collections.List
+
+/**
+ * @param id Category ID
+ * @param name Category name
+ * @param children no description
+ */
+data class MarketMarketCategoryTree(
+    @SerializedName(value="id")
+    val id: Int,
+    @SerializedName(value="name")
+    val name: String,
+    @SerializedName(value="children")
+    val children: List<MarketMarketCategoryTree>? = null
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketItemAvailability.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketItemAvailability.kt
index 83bbc28c19..e596d7dc2f 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketItemAvailability.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketItemAvailability.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.market.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,23 @@ enum class MarketMarketItemAvailability(
 
     UNAVAILABLE(2);
 
-    class Serializer : JsonDeserializer<MarketMarketItemAvailability> {
+    class Serializer : JsonSerializer<MarketMarketItemAvailability>,
+            JsonDeserializer<MarketMarketItemAvailability> {
+        override fun serialize(
+            src: MarketMarketItemAvailability?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): MarketMarketItemAvailability = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): MarketMarketItemAvailability {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketItemFull.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketItemFull.kt
index 50c33d2261..b7cf391217 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketItemFull.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketMarketItemFull.kt
@@ -30,6 +30,7 @@ package com.vk.sdk.api.market.dto
 import com.google.gson.annotations.SerializedName
 import com.vk.sdk.api.base.dto.BaseBoolInt
 import com.vk.sdk.api.base.dto.BaseLikes
+import com.vk.sdk.api.base.dto.BaseLink
 import com.vk.sdk.api.base.dto.BaseRepostsInfo
 import com.vk.sdk.api.photos.dto.PhotosPhoto
 import kotlin.Boolean
@@ -45,6 +46,9 @@ import kotlin.collections.List
  * @param likes no description
  * @param reposts no description
  * @param viewsCount Views number
+ * @param wishlistItemId Object identifier in wishlist of viewer
+ * @param cancelInfo Information for cancel and revert order
+ * @param userAgreementInfo User agreement info
  * @param accessKey Access key for the market item
  * @param availability no description
  * @param buttonTitle Title for button for url
@@ -77,6 +81,12 @@ data class MarketMarketItemFull(
     val reposts: BaseRepostsInfo? = null,
     @SerializedName(value="views_count")
     val viewsCount: Int? = null,
+    @SerializedName(value="wishlist_item_id")
+    val wishlistItemId: Int? = null,
+    @SerializedName(value="cancel_info")
+    val cancelInfo: BaseLink? = null,
+    @SerializedName(value="user_agreement_info")
+    val userAgreementInfo: String? = null,
     @SerializedName(value="access_key")
     val accessKey: String? = null,
     @SerializedName(value="availability")
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketOrder.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketOrder.kt
index 4f7b4ce35c..fca436c937 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketOrder.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketOrder.kt
@@ -28,6 +28,7 @@
 package com.vk.sdk.api.market.dto
 
 import com.google.gson.annotations.SerializedName
+import com.vk.sdk.api.base.dto.BaseLink
 import kotlin.Int
 import kotlin.String
 import kotlin.collections.List
@@ -48,6 +49,7 @@ import kotlin.collections.List
  * @param merchantComment no description
  * @param weight no description
  * @param previewOrderItems Several order items for preview
+ * @param cancelInfo Information for cancel and revert order
  */
 data class MarketOrder(
     @SerializedName(value="id")
@@ -79,5 +81,7 @@ data class MarketOrder(
     @SerializedName(value="weight")
     val weight: Int? = null,
     @SerializedName(value="preview_order_items")
-    val previewOrderItems: List<MarketOrderItem>? = null
+    val previewOrderItems: List<MarketOrderItem>? = null,
+    @SerializedName(value="cancel_info")
+    val cancelInfo: BaseLink? = null
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketPrice.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketPrice.kt
index 434f1a1ad2..a7be50ee7c 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketPrice.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketPrice.kt
@@ -37,6 +37,7 @@ import kotlin.String
  * @param discountRate no description
  * @param oldAmount no description
  * @param text Text
+ * @param oldAmountText Textual representation of old price
  */
 data class MarketPrice(
     @SerializedName(value="amount")
@@ -48,5 +49,7 @@ data class MarketPrice(
     @SerializedName(value="old_amount")
     val oldAmount: String? = null,
     @SerializedName(value="text")
-    val text: String? = null
+    val text: String? = null,
+    @SerializedName(value="old_amount_text")
+    val oldAmountText: String? = null
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketReportCommentReason.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketReportCommentReason.kt
index 11c56f90b5..97fecb0aeb 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketReportCommentReason.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketReportCommentReason.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.market.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -50,12 +55,23 @@ enum class MarketReportCommentReason(
 
     INSULT_ABUSE(6);
 
-    class Serializer : JsonDeserializer<MarketReportCommentReason> {
+    class Serializer : JsonSerializer<MarketReportCommentReason>,
+            JsonDeserializer<MarketReportCommentReason> {
+        override fun serialize(
+            src: MarketReportCommentReason?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): MarketReportCommentReason = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): MarketReportCommentReason {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketReportReason.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketReportReason.kt
index 33729315e8..5a8881165d 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketReportReason.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketReportReason.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.market.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -50,12 +55,22 @@ enum class MarketReportReason(
 
     INSULT_ABUSE(6);
 
-    class Serializer : JsonDeserializer<MarketReportReason> {
+    class Serializer : JsonSerializer<MarketReportReason>, JsonDeserializer<MarketReportReason> {
+        override fun serialize(
+            src: MarketReportReason?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): MarketReportReason = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): MarketReportReason {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketSearchRev.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketSearchRev.kt
index bfcf403221..82301dea4d 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketSearchRev.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketSearchRev.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.market.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -40,12 +45,22 @@ enum class MarketSearchRev(
 
     REVERSE(1);
 
-    class Serializer : JsonDeserializer<MarketSearchRev> {
+    class Serializer : JsonSerializer<MarketSearchRev>, JsonDeserializer<MarketSearchRev> {
+        override fun serialize(
+            src: MarketSearchRev?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): MarketSearchRev = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): MarketSearchRev {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketSearchSort.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketSearchSort.kt
index 920e185a07..e05a13faef 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketSearchSort.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketSearchSort.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.market.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -44,12 +49,22 @@ enum class MarketSearchSort(
 
     THREE_(3);
 
-    class Serializer : JsonDeserializer<MarketSearchSort> {
+    class Serializer : JsonSerializer<MarketSearchSort>, JsonDeserializer<MarketSearchSort> {
+        override fun serialize(
+            src: MarketSearchSort?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): MarketSearchSort = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): MarketSearchSort {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketSearchStatus.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketSearchStatus.kt
index 7f873066e8..b2c34175f2 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketSearchStatus.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/dto/MarketSearchStatus.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.market.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -40,12 +45,22 @@ enum class MarketSearchStatus(
 
     TWO_(2);
 
-    class Serializer : JsonDeserializer<MarketSearchStatus> {
+    class Serializer : JsonSerializer<MarketSearchStatus>, JsonDeserializer<MarketSearchStatus> {
+        override fun serialize(
+            src: MarketSearchStatus?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): MarketSearchStatus = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): MarketSearchStatus {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/methods/MarketEditOrder.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/methods/MarketEditOrder.kt
index 758f38fe27..f5fdda4b6a 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/methods/MarketEditOrder.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/methods/MarketEditOrder.kt
@@ -29,8 +29,8 @@ package com.vk.sdk.api.market.methods
 
 import com.vk.sdk.api.ApiRequestBase
 import com.vk.sdk.api.GsonHolder
-import com.vk.sdk.api.market.dto.MarketEditOrderResponseDto
-import com.vk.sdk.api.market.responses.MarketEditOrderResponse
+import com.vk.sdk.api.base.dto.BaseOkResponseDto
+import com.vk.sdk.api.base.responses.BaseOkResponse
 import kotlin.Int
 import kotlin.String
 import org.json.JSONObject
@@ -47,7 +47,7 @@ class MarketEditOrder(
     private val orderId: Int,
     private val merchantComment: String? = null,
     private val status: Int? = null
-) : ApiRequestBase<MarketEditOrderResponseDto>(methodName = "market.editOrder") {
+) : ApiRequestBase<BaseOkResponseDto>(methodName = "market.editOrder") {
     init {
         addParam("user_id", userId)
         addParam("order_id", orderId)
@@ -59,6 +59,6 @@ class MarketEditOrder(
         }
     }
 
-    override fun parse(r: JSONObject): MarketEditOrderResponseDto =
-            GsonHolder.gson.fromJson(r.toString(), MarketEditOrderResponse::class.java).response
+    override fun parse(r: JSONObject): BaseOkResponseDto = GsonHolder.gson.fromJson(r.toString(),
+            BaseOkResponse::class.java).response
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/methods/MarketGetCategories.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/methods/MarketGetCategories.kt
index acf3420136..9c1c8c2e70 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/methods/MarketGetCategories.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/methods/MarketGetCategories.kt
@@ -29,8 +29,8 @@ package com.vk.sdk.api.market.methods
 
 import com.vk.sdk.api.ApiRequestBase
 import com.vk.sdk.api.GsonHolder
-import com.vk.sdk.api.market.dto.MarketGetCategoriesResponseDto
-import com.vk.sdk.api.market.responses.MarketGetCategoriesResponse
+import com.vk.sdk.api.market.dto.MarketGetCategoriesNewResponseDto
+import com.vk.sdk.api.market.responses.MarketGetCategoriesNewResponse
 import kotlin.Int
 import org.json.JSONObject
 
@@ -42,7 +42,7 @@ import org.json.JSONObject
 class MarketGetCategories(
     private val count: Int? = null,
     private val offset: Int? = null
-) : ApiRequestBase<MarketGetCategoriesResponseDto>(methodName = "market.getCategories") {
+) : ApiRequestBase<MarketGetCategoriesNewResponseDto>(methodName = "market.getCategories") {
     init {
         count?.let { value ->
             addParam("count", value)
@@ -52,6 +52,7 @@ class MarketGetCategories(
         }
     }
 
-    override fun parse(r: JSONObject): MarketGetCategoriesResponseDto =
-            GsonHolder.gson.fromJson(r.toString(), MarketGetCategoriesResponse::class.java).response
+    override fun parse(r: JSONObject): MarketGetCategoriesNewResponseDto =
+            GsonHolder.gson.fromJson(r.toString(),
+            MarketGetCategoriesNewResponse::class.java).response
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/market/responses/MarketGetCategoriesNewResponse.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/responses/MarketGetCategoriesNewResponse.kt
new file mode 100644
index 0000000000..e7ac5e5127
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/market/responses/MarketGetCategoriesNewResponse.kt
@@ -0,0 +1,39 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.market.responses
+
+import com.google.gson.annotations.SerializedName
+import com.vk.sdk.api.market.dto.MarketGetCategoriesNewResponseDto
+
+/**
+ * @param response no description
+ */
+data class MarketGetCategoriesNewResponse(
+    @SerializedName(value="response")
+    val response: MarketGetCategoriesNewResponseDto
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesAudioMessage.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesAudioMessage.kt
index 1d3619e045..d7d2814dcc 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesAudioMessage.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesAudioMessage.kt
@@ -40,6 +40,7 @@ import kotlin.collections.List
  * @param ownerId Audio message owner ID
  * @param waveform no description
  * @param accessKey Access key for audio message
+ * @param transcriptError no description
  */
 data class MessagesAudioMessage(
     @SerializedName(value="duration")
@@ -55,5 +56,7 @@ data class MessagesAudioMessage(
     @SerializedName(value="waveform")
     val waveform: List<Int>,
     @SerializedName(value="access_key")
-    val accessKey: String? = null
+    val accessKey: String? = null,
+    @SerializedName(value="transcript_error")
+    val transcriptError: Int? = null
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesConversation.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesConversation.kt
index ad33e87d0d..d432af1a67 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesConversation.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesConversation.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.messages.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import java.lang.reflect.Type
 import kotlin.Boolean
@@ -44,6 +49,7 @@ import kotlin.collections.List
  * @param outRead Last outcoming message have been read by the opponent
  * @param unreadCount Unread messages number
  * @param isMarkedUnread Is this conversation uread
+ * @param outReadBy no description
  * @param important no description
  * @param unanswered no description
  * @param specialServiceType no description
@@ -67,6 +73,8 @@ data class MessagesConversation(
     val unreadCount: Int? = null,
     @SerializedName(value="is_marked_unread")
     val isMarkedUnread: Boolean? = null,
+    @SerializedName(value="out_read_by")
+    val outReadBy: MessagesOutReadBy? = null,
     @SerializedName(value="important")
     val important: Boolean? = null,
     @SerializedName(value="unanswered")
@@ -91,13 +99,24 @@ data class MessagesConversation(
     ) {
         BUSINESS_NOTIFY("business_notify");
 
-        class Serializer : JsonDeserializer<SpecialServiceType> {
+        class Serializer : JsonSerializer<SpecialServiceType>, JsonDeserializer<SpecialServiceType>
+                {
+            override fun serialize(
+                src: SpecialServiceType?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): SpecialServiceType = values().first { it.value.toString() ==
-                    json!!.asJsonPrimitive.toString() }
+            ): SpecialServiceType {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesConversationPeerType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesConversationPeerType.kt
index 86aad708f5..22dd8b5248 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesConversationPeerType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesConversationPeerType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.messages.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -46,12 +51,23 @@ enum class MessagesConversationPeerType(
 
     CONTACT("contact");
 
-    class Serializer : JsonDeserializer<MessagesConversationPeerType> {
+    class Serializer : JsonSerializer<MessagesConversationPeerType>,
+            JsonDeserializer<MessagesConversationPeerType> {
+        override fun serialize(
+            src: MessagesConversationPeerType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): MessagesConversationPeerType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): MessagesConversationPeerType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesForward.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesForward.kt
new file mode 100644
index 0000000000..332794f8d7
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesForward.kt
@@ -0,0 +1,53 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.messages.dto
+
+import com.google.gson.annotations.SerializedName
+import kotlin.Boolean
+import kotlin.Int
+import kotlin.collections.List
+
+/**
+ * @param ownerId Messages owner_id
+ * @param peerId Messages peer_id
+ * @param conversationMessageIds no description
+ * @param messageIds no description
+ * @param isReply If you need to reply to a message
+ */
+data class MessagesForward(
+    @SerializedName(value="owner_id")
+    val ownerId: Int? = null,
+    @SerializedName(value="peer_id")
+    val peerId: Int? = null,
+    @SerializedName(value="conversation_message_ids")
+    val conversationMessageIds: List<Int>? = null,
+    @SerializedName(value="message_ids")
+    val messageIds: List<Int>? = null,
+    @SerializedName(value="is_reply")
+    val isReply: Boolean? = null
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesGetConversationsFilter.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesGetConversationsFilter.kt
index ccad9080df..e88efa72da 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesGetConversationsFilter.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesGetConversationsFilter.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.messages.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -50,12 +55,23 @@ enum class MessagesGetConversationsFilter(
 
     UNREAD("unread");
 
-    class Serializer : JsonDeserializer<MessagesGetConversationsFilter> {
+    class Serializer : JsonSerializer<MessagesGetConversationsFilter>,
+            JsonDeserializer<MessagesGetConversationsFilter> {
+        override fun serialize(
+            src: MessagesGetConversationsFilter?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): MessagesGetConversationsFilter = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): MessagesGetConversationsFilter {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesGetHistoryAttachmentsMediaType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesGetHistoryAttachmentsMediaType.kt
index 34a2578769..e7766a42ab 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesGetHistoryAttachmentsMediaType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesGetHistoryAttachmentsMediaType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.messages.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -56,12 +61,23 @@ enum class MessagesGetHistoryAttachmentsMediaType(
 
     WALL("wall");
 
-    class Serializer : JsonDeserializer<MessagesGetHistoryAttachmentsMediaType> {
+    class Serializer : JsonSerializer<MessagesGetHistoryAttachmentsMediaType>,
+            JsonDeserializer<MessagesGetHistoryAttachmentsMediaType> {
+        override fun serialize(
+            src: MessagesGetHistoryAttachmentsMediaType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): MessagesGetHistoryAttachmentsMediaType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): MessagesGetHistoryAttachmentsMediaType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesGetHistoryRev.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesGetHistoryRev.kt
index 4fdca79522..41fa2ad694 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesGetHistoryRev.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesGetHistoryRev.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.messages.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -40,12 +45,23 @@ enum class MessagesGetHistoryRev(
 
     REVERSE_CHRONOLOGICAL(0);
 
-    class Serializer : JsonDeserializer<MessagesGetHistoryRev> {
+    class Serializer : JsonSerializer<MessagesGetHistoryRev>,
+            JsonDeserializer<MessagesGetHistoryRev> {
+        override fun serialize(
+            src: MessagesGetHistoryRev?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): MessagesGetHistoryRev = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): MessagesGetHistoryRev {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesHistoryAttachment.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesHistoryAttachment.kt
index 48aac6e238..07a6973bc0 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesHistoryAttachment.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesHistoryAttachment.kt
@@ -34,6 +34,7 @@ import kotlin.Int
  * @param attachment no description
  * @param messageId Message ID
  * @param fromId Message author's ID
+ * @param forwardLevel Forward level (optional)
  */
 data class MessagesHistoryAttachment(
     @SerializedName(value="attachment")
@@ -41,5 +42,7 @@ data class MessagesHistoryAttachment(
     @SerializedName(value="message_id")
     val messageId: Int,
     @SerializedName(value="from_id")
-    val fromId: Int
+    val fromId: Int,
+    @SerializedName(value="forward_level")
+    val forwardLevel: Int? = null
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesKeyboardButton.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesKeyboardButton.kt
index d934ef9a5f..b4d0059699 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesKeyboardButton.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesKeyboardButton.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.messages.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import java.lang.reflect.Type
 import kotlin.String
@@ -55,12 +60,23 @@ data class MessagesKeyboardButton(
 
         PRIMARY("primary");
 
-        class Serializer : JsonDeserializer<Color> {
+        class Serializer : JsonSerializer<Color>, JsonDeserializer<Color> {
+            override fun serialize(
+                src: Color?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): Color = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Color {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesOutReadBy.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesOutReadBy.kt
new file mode 100644
index 0000000000..d59ba1698f
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesOutReadBy.kt
@@ -0,0 +1,43 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.messages.dto
+
+import com.google.gson.annotations.SerializedName
+import kotlin.Int
+import kotlin.collections.List
+
+/**
+ * @param count no description
+ * @param memberIds no description
+ */
+data class MessagesOutReadBy(
+    @SerializedName(value="count")
+    val count: Int? = null,
+    @SerializedName(value="member_ids")
+    val memberIds: List<Int>? = null
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesSendIntent.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesSendIntent.kt
index 5e32313a9e..af73e8e5a4 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesSendIntent.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesSendIntent.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.messages.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -58,12 +63,22 @@ enum class MessagesSendIntent(
 
     PURCHASE_UPDATE("purchase_update");
 
-    class Serializer : JsonDeserializer<MessagesSendIntent> {
+    class Serializer : JsonSerializer<MessagesSendIntent>, JsonDeserializer<MessagesSendIntent> {
+        override fun serialize(
+            src: MessagesSendIntent?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): MessagesSendIntent = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): MessagesSendIntent {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesTemplateActionTypeNames.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesTemplateActionTypeNames.kt
index ab3784b8e8..73d66cfaed 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesTemplateActionTypeNames.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/dto/MessagesTemplateActionTypeNames.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.messages.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -56,12 +61,23 @@ enum class MessagesTemplateActionTypeNames(
 
     INTENT_UNSUBSCRIBE("intent_unsubscribe");
 
-    class Serializer : JsonDeserializer<MessagesTemplateActionTypeNames> {
+    class Serializer : JsonSerializer<MessagesTemplateActionTypeNames>,
+            JsonDeserializer<MessagesTemplateActionTypeNames> {
+        override fun serialize(
+            src: MessagesTemplateActionTypeNames?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): MessagesTemplateActionTypeNames = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): MessagesTemplateActionTypeNames {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/methods/MessagesAllowMessagesFromGroup.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/methods/MessagesAllowMessagesFromGroup.kt
index b5bd164299..2cc563c9d3 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/methods/MessagesAllowMessagesFromGroup.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/methods/MessagesAllowMessagesFromGroup.kt
@@ -38,7 +38,7 @@ import org.json.JSONObject
 /**
  * Allows sending messages from community to the current user.
  * @param groupId Group ID. minimum 0
- * @param key  
+ * @param key  maxLength 256
  */
 class MessagesAllowMessagesFromGroup(
     private val groupId: Int,
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/methods/MessagesPin.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/methods/MessagesPin.kt
index 21c54717a4..636ea617eb 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/methods/MessagesPin.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/methods/MessagesPin.kt
@@ -38,17 +38,22 @@ import org.json.JSONObject
  * Pin a message.
  * @param peerId Destination ID. "For user: 'User ID', e.g. '12345'. For chat: '2000000000' + 'Chat
  * ID', e.g. '2000000001'. For community: '- Community ID', e.g. '-12345'. " 
- * @param messageId  minimum 0
+ * @param messageId Message ID minimum 0
+ * @param conversationMessageId Conversation message ID minimum 0
  */
 class MessagesPin(
     private val peerId: Int,
-    private val messageId: Int? = null
+    private val messageId: Int? = null,
+    private val conversationMessageId: Int? = null
 ) : ApiRequestBase<MessagesPinnedMessage>(methodName = "messages.pin") {
     init {
         addParam("peer_id", peerId)
         messageId?.let { value ->
             addParam("message_id", value)
         }
+        conversationMessageId?.let { value ->
+            addParam("conversation_message_id", value)
+        }
     }
 
     override fun parse(r: JSONObject): MessagesPinnedMessage =
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/methods/MessagesSearchConversations.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/methods/MessagesSearchConversations.kt
index 4107cb4a85..eed965ba65 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/methods/MessagesSearchConversations.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/methods/MessagesSearchConversations.kt
@@ -41,7 +41,7 @@ import org.json.JSONObject
 /**
  * Returns a list of the current user's conversations that match search criteria.
  * @param q Search query string. 
- * @param count Maximum number of results. default 20 minimum 0
+ * @param count Maximum number of results. default 20 minimum 1 maximum 255
  * @param extended '1' - return extra information about users and communities 
  * @param fields Profile fields to return. 
  * @param groupId Group ID (for group messages with user access token) minimum 0
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/methods/MessagesSend.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/methods/MessagesSend.kt
index b287feb47b..c37f87ebf4 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/methods/MessagesSend.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/methods/MessagesSend.kt
@@ -44,6 +44,7 @@ import org.json.JSONObject
  * @param randomId Unique identifier to avoid resending the message. 
  * @param peerId Destination ID. "For user: 'User ID', e.g. '12345'. For chat: '2000000000' +
  * 'chat_id', e.g. '2000000001'. For community: '- community ID', e.g. '-12345'. " 
+ * @param peerIds IDs of message recipients. (See peer_id) 
  * @param domain User's short address (for example, 'illarionov'). 
  * @param chatId ID of conversation the message will relate to. minimum 0 maximum 100000000
  * @param userIds IDs of message recipients (if new conversation shall be started). 
@@ -58,11 +59,13 @@ import org.json.JSONObject
  * @param replyTo  
  * @param forwardMessages ID of forwarded messages, separated with a comma. Listed messages of the
  * sender will be shown in the message body at the recipient's. Example: "123,431,544" 
+ * @param forward JSON describing the forwarded message or reply 
  * @param stickerId Sticker id. minimum 0
  * @param groupId Group ID (for group messages with group access token) minimum 0
  * @param keyboard  
  * @param template  
  * @param payload  maxLength 1000
+ * @param contentSource JSON describing the content source in the message 
  * @param dontParseLinks  default false
  * @param disableMentions  default false
  * @param intent  default "default"
@@ -72,6 +75,7 @@ class MessagesSend(
     private val userId: Int? = null,
     private val randomId: Int? = null,
     private val peerId: Int? = null,
+    private val peerIds: List<Int>? = null,
     private val domain: String? = null,
     private val chatId: Int? = null,
     private val userIds: List<Int>? = null,
@@ -81,11 +85,13 @@ class MessagesSend(
     private val attachment: String? = null,
     private val replyTo: Int? = null,
     private val forwardMessages: List<Int>? = null,
+    private val forward: String? = null,
     private val stickerId: Int? = null,
     private val groupId: Int? = null,
     private val keyboard: String? = null,
     private val template: String? = null,
     private val payload: String? = null,
+    private val contentSource: String? = null,
     private val dontParseLinks: Boolean? = null,
     private val disableMentions: Boolean? = null,
     private val intent: MessagesSendIntent? = null,
@@ -101,6 +107,9 @@ class MessagesSend(
         peerId?.let { value ->
             addParam("peer_id", value)
         }
+        peerIds?.let { value ->
+            addParam("peer_ids", value)
+        }
         domain?.let { value ->
             addParam("domain", value)
         }
@@ -128,6 +137,9 @@ class MessagesSend(
         forwardMessages?.let { value ->
             addParam("forward_messages", value)
         }
+        forward?.let { value ->
+            addParam("forward", value)
+        }
         stickerId?.let { value ->
             addParam("sticker_id", value)
         }
@@ -143,6 +155,9 @@ class MessagesSend(
         payload?.let { value ->
             addParam("payload", value)
         }
+        contentSource?.let { value ->
+            addParam("content_source", value)
+        }
         dontParseLinks?.let { value ->
             addParam("dont_parse_links", if (value) 1 else 0)
         }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/methods/MessagesSendUserids.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/methods/MessagesSendUserids.kt
index ad1ce30e6d..3e7649a06d 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/methods/MessagesSendUserids.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/messages/methods/MessagesSendUserids.kt
@@ -45,6 +45,7 @@ import org.json.JSONObject
  * @param randomId Unique identifier to avoid resending the message. 
  * @param peerId Destination ID. "For user: 'User ID', e.g. '12345'. For chat: '2000000000' +
  * 'chat_id', e.g. '2000000001'. For community: '- community ID', e.g. '-12345'. " 
+ * @param peerIds IDs of message recipients. (See peer_id) 
  * @param domain User's short address (for example, 'illarionov'). 
  * @param chatId ID of conversation the message will relate to. minimum 0 maximum 100000000
  * @param userIds IDs of message recipients (if new conversation shall be started). 
@@ -59,11 +60,13 @@ import org.json.JSONObject
  * @param replyTo  
  * @param forwardMessages ID of forwarded messages, separated with a comma. Listed messages of the
  * sender will be shown in the message body at the recipient's. Example: "123,431,544" 
+ * @param forward JSON describing the forwarded message or reply 
  * @param stickerId Sticker id. minimum 0
  * @param groupId Group ID (for group messages with group access token) minimum 0
  * @param keyboard  
  * @param template  
  * @param payload  maxLength 1000
+ * @param contentSource JSON describing the content source in the message 
  * @param dontParseLinks  default false
  * @param disableMentions  default false
  * @param intent  default "default"
@@ -73,6 +76,7 @@ class MessagesSendUserids(
     private val userId: Int? = null,
     private val randomId: Int? = null,
     private val peerId: Int? = null,
+    private val peerIds: List<Int>? = null,
     private val domain: String? = null,
     private val chatId: Int? = null,
     private val userIds: List<Int>? = null,
@@ -82,11 +86,13 @@ class MessagesSendUserids(
     private val attachment: String? = null,
     private val replyTo: Int? = null,
     private val forwardMessages: List<Int>? = null,
+    private val forward: String? = null,
     private val stickerId: Int? = null,
     private val groupId: Int? = null,
     private val keyboard: String? = null,
     private val template: String? = null,
     private val payload: String? = null,
+    private val contentSource: String? = null,
     private val dontParseLinks: Boolean? = null,
     private val disableMentions: Boolean? = null,
     private val intent: MessagesSendIntent? = null,
@@ -102,6 +108,9 @@ class MessagesSendUserids(
         peerId?.let { value ->
             addParam("peer_id", value)
         }
+        peerIds?.let { value ->
+            addParam("peer_ids", value)
+        }
         domain?.let { value ->
             addParam("domain", value)
         }
@@ -129,6 +138,9 @@ class MessagesSendUserids(
         forwardMessages?.let { value ->
             addParam("forward_messages", value)
         }
+        forward?.let { value ->
+            addParam("forward", value)
+        }
         stickerId?.let { value ->
             addParam("sticker_id", value)
         }
@@ -144,6 +156,9 @@ class MessagesSendUserids(
         payload?.let { value ->
             addParam("payload", value)
         }
+        contentSource?.let { value ->
+            addParam("content_source", value)
+        }
         dontParseLinks?.let { value ->
             addParam("dont_parse_links", if (value) 1 else 0)
         }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedCommentsFilters.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedCommentsFilters.kt
index 8a15252df6..5c0e0fc55d 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedCommentsFilters.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedCommentsFilters.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.newsfeed.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -46,12 +51,23 @@ enum class NewsfeedCommentsFilters(
 
     NOTE("note");
 
-    class Serializer : JsonDeserializer<NewsfeedCommentsFilters> {
+    class Serializer : JsonSerializer<NewsfeedCommentsFilters>,
+            JsonDeserializer<NewsfeedCommentsFilters> {
+        override fun serialize(
+            src: NewsfeedCommentsFilters?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): NewsfeedCommentsFilters = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): NewsfeedCommentsFilters {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedFilters.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedFilters.kt
index baae4298e2..c2bf661c68 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedFilters.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedFilters.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.newsfeed.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -60,12 +65,22 @@ enum class NewsfeedFilters(
 
     CLIP("clip");
 
-    class Serializer : JsonDeserializer<NewsfeedFilters> {
+    class Serializer : JsonSerializer<NewsfeedFilters>, JsonDeserializer<NewsfeedFilters> {
+        override fun serialize(
+            src: NewsfeedFilters?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): NewsfeedFilters = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): NewsfeedFilters {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedGetBannedNameCase.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedGetBannedNameCase.kt
index 6d77ccf827..08c8f24e79 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedGetBannedNameCase.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedGetBannedNameCase.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.newsfeed.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -48,12 +53,23 @@ enum class NewsfeedGetBannedNameCase(
 
     PREPOSITIONAL("abl");
 
-    class Serializer : JsonDeserializer<NewsfeedGetBannedNameCase> {
+    class Serializer : JsonSerializer<NewsfeedGetBannedNameCase>,
+            JsonDeserializer<NewsfeedGetBannedNameCase> {
+        override fun serialize(
+            src: NewsfeedGetBannedNameCase?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): NewsfeedGetBannedNameCase = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): NewsfeedGetBannedNameCase {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedGetSuggestedSourcesResponseDto.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedGetSuggestedSourcesResponseDto.kt
index 3af8d29acc..7be4743495 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedGetSuggestedSourcesResponseDto.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedGetSuggestedSourcesResponseDto.kt
@@ -28,8 +28,7 @@
 package com.vk.sdk.api.newsfeed.dto
 
 import com.google.gson.annotations.SerializedName
-import com.vk.sdk.api.groups.dto.GroupsGroupFull
-import com.vk.sdk.api.users.dto.UsersUserXtrType
+import com.vk.sdk.api.users.dto.UsersSubscriptionsItem
 import kotlin.Int
 import kotlin.collections.List
 
@@ -41,21 +40,5 @@ data class NewsfeedGetSuggestedSourcesResponseDto(
     @SerializedName(value="count")
     val count: Int? = null,
     @SerializedName(value="items")
-    val items: List<Items>? = null
-) {
-    sealed class Items {
-        /**
-         * @param groupsGroupFull
-         */
-        data class GroupsGroupFullValue(
-            val groupsGroupFull: GroupsGroupFull
-        ) : Items()
-
-        /**
-         * @param usersUserXtrType
-         */
-        data class UsersUserXtrTypeValue(
-            val usersUserXtrType: UsersUserXtrType
-        ) : Items()
-    }
-}
+    val items: List<UsersSubscriptionsItem>? = null
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedIgnoreItemType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedIgnoreItemType.kt
index 2840ece79c..842d757766 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedIgnoreItemType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedIgnoreItemType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.newsfeed.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -48,12 +53,23 @@ enum class NewsfeedIgnoreItemType(
 
     AUDIO("audio");
 
-    class Serializer : JsonDeserializer<NewsfeedIgnoreItemType> {
+    class Serializer : JsonSerializer<NewsfeedIgnoreItemType>,
+            JsonDeserializer<NewsfeedIgnoreItemType> {
+        override fun serialize(
+            src: NewsfeedIgnoreItemType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): NewsfeedIgnoreItemType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): NewsfeedIgnoreItemType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemDigest.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemDigest.kt
index 1e078b4fa6..7776ac4bcd 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemDigest.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemDigest.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.newsfeed.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import com.vk.sdk.api.wall.dto.WallWallpost
 import java.lang.reflect.Type
@@ -38,20 +43,18 @@ import kotlin.String
 import kotlin.collections.List
 
 /**
- * @param buttonText no description
  * @param feedId id of feed in digest
  * @param items no description
  * @param mainPostIds no description
  * @param template type of digest
- * @param title no description
+ * @param header no description
+ * @param footer no description
  * @param trackCode no description
  * @param type no description
  * @param sourceId Item source ID
  * @param date Date when item has been added in Unixtime
  */
 data class NewsfeedItemDigest(
-    @SerializedName(value="button_text")
-    val buttonText: String? = null,
     @SerializedName(value="feed_id")
     val feedId: String? = null,
     @SerializedName(value="items")
@@ -60,8 +63,10 @@ data class NewsfeedItemDigest(
     val mainPostIds: List<String>? = null,
     @SerializedName(value="template")
     val template: Template? = null,
-    @SerializedName(value="title")
-    val title: String? = null,
+    @SerializedName(value="header")
+    val header: NewsfeedItemDigestHeader? = null,
+    @SerializedName(value="footer")
+    val footer: NewsfeedItemDigestFooter? = null,
     @SerializedName(value="track_code")
     val trackCode: String? = null,
     @SerializedName(value="type")
@@ -76,15 +81,27 @@ data class NewsfeedItemDigest(
     ) {
         LIST("list"),
 
-        GRID("grid");
+        GRID("grid"),
+
+        SINGLE("single");
+
+        class Serializer : JsonSerializer<Template>, JsonDeserializer<Template> {
+            override fun serialize(
+                src: Template?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
 
-        class Serializer : JsonDeserializer<Template> {
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): Template = values().first { it.value.toString() == json!!.asJsonPrimitive.toString()
-                    }
+            ): Template {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemDigestFooter.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemDigestFooter.kt
new file mode 100644
index 0000000000..b5fab60d62
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemDigestFooter.kt
@@ -0,0 +1,81 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.newsfeed.dto
+
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
+import com.google.gson.annotations.SerializedName
+import java.lang.reflect.Type
+import kotlin.String
+
+/**
+ * @param style no description
+ * @param text text for invite to enable smart feed
+ * @param button no description
+ */
+data class NewsfeedItemDigestFooter(
+    @SerializedName(value="style")
+    val style: Style,
+    @SerializedName(value="text")
+    val text: String,
+    @SerializedName(value="button")
+    val button: NewsfeedItemDigestFooterButton? = null
+) {
+    enum class Style(
+        val value: String
+    ) {
+        TEXT("text"),
+
+        BUTTON("button");
+
+        class Serializer : JsonSerializer<Style>, JsonDeserializer<Style> {
+            override fun serialize(
+                src: Style?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
+            override fun deserialize(
+                json: JsonElement?,
+                typeOfT: Type?,
+                context: JsonDeserializationContext?
+            ): Style {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
+        }
+    }
+}
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemDigestFooterButton.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemDigestFooterButton.kt
new file mode 100644
index 0000000000..6b697ef365
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemDigestFooterButton.kt
@@ -0,0 +1,76 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.newsfeed.dto
+
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
+import com.google.gson.annotations.SerializedName
+import java.lang.reflect.Type
+import kotlin.String
+
+/**
+ * @param title no description
+ * @param style no description
+ */
+data class NewsfeedItemDigestFooterButton(
+    @SerializedName(value="title")
+    val title: String,
+    @SerializedName(value="style")
+    val style: Style
+) {
+    enum class Style(
+        val value: String
+    ) {
+        PRIMARY("primary");
+
+        class Serializer : JsonSerializer<Style>, JsonDeserializer<Style> {
+            override fun serialize(
+                src: Style?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
+            override fun deserialize(
+                json: JsonElement?,
+                typeOfT: Type?,
+                context: JsonDeserializationContext?
+            ): Style {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
+        }
+    }
+}
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemDigestHeader.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemDigestHeader.kt
new file mode 100644
index 0000000000..8c1e62912b
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemDigestHeader.kt
@@ -0,0 +1,81 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.newsfeed.dto
+
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
+import com.google.gson.annotations.SerializedName
+import java.lang.reflect.Type
+import kotlin.String
+
+/**
+ * @param title Title of the header
+ * @param style no description
+ * @param subtitle Subtitle of the header, when title have two strings
+ */
+data class NewsfeedItemDigestHeader(
+    @SerializedName(value="title")
+    val title: String,
+    @SerializedName(value="style")
+    val style: Style,
+    @SerializedName(value="subtitle")
+    val subtitle: String? = null
+) {
+    enum class Style(
+        val value: String
+    ) {
+        SINGLELINE("singleline"),
+
+        MULTILINE("multiline");
+
+        class Serializer : JsonSerializer<Style>, JsonDeserializer<Style> {
+            override fun serialize(
+                src: Style?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
+            override fun deserialize(
+                json: JsonElement?,
+                typeOfT: Type?,
+                context: JsonDeserializationContext?
+            ): Style {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
+        }
+    }
+}
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemWallpostFeedbackType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemWallpostFeedbackType.kt
index aaf24743b9..1147f79b9c 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemWallpostFeedbackType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemWallpostFeedbackType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.newsfeed.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,23 @@ enum class NewsfeedItemWallpostFeedbackType(
 
     STARS("stars");
 
-    class Serializer : JsonDeserializer<NewsfeedItemWallpostFeedbackType> {
+    class Serializer : JsonSerializer<NewsfeedItemWallpostFeedbackType>,
+            JsonDeserializer<NewsfeedItemWallpostFeedbackType> {
+        override fun serialize(
+            src: NewsfeedItemWallpostFeedbackType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): NewsfeedItemWallpostFeedbackType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): NewsfeedItemWallpostFeedbackType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemWallpostType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemWallpostType.kt
index 9d308e9cf7..57eec75506 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemWallpostType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedItemWallpostType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.newsfeed.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,23 @@ enum class NewsfeedItemWallpostType(
 
     REPLY("reply");
 
-    class Serializer : JsonDeserializer<NewsfeedItemWallpostType> {
+    class Serializer : JsonSerializer<NewsfeedItemWallpostType>,
+            JsonDeserializer<NewsfeedItemWallpostType> {
+        override fun serialize(
+            src: NewsfeedItemWallpostType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): NewsfeedItemWallpostType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): NewsfeedItemWallpostType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedNewsfeedItemType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedNewsfeedItemType.kt
index 3eb9e536ba..e46fb852c7 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedNewsfeedItemType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedNewsfeedItemType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.newsfeed.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -46,8 +51,6 @@ enum class NewsfeedNewsfeedItemType(
 
     FRIEND("friend"),
 
-    NOTE("note"),
-
     AUDIO("audio"),
 
     VIDEO("video"),
@@ -66,14 +69,37 @@ enum class NewsfeedNewsfeedItemType(
 
     TAGS_SUGGESTIONS("tags_suggestions"),
 
-    GAMES_CAROUSEL("games_carousel");
+    GAMES_CAROUSEL("games_carousel"),
+
+    FEEDBACK_POLL("feedback_poll"),
+
+    ANIMATED_BLOCK("animated_block"),
+
+    TEXTLIVE("textlive"),
+
+    VIDEOS_PROMO("videos_promo"),
+
+    RECOMMENDED_ARTISTS("recommended_artists"),
+
+    RECOMMENDED_PLAYLISTS("recommended_playlists");
+
+    class Serializer : JsonSerializer<NewsfeedNewsfeedItemType>,
+            JsonDeserializer<NewsfeedNewsfeedItemType> {
+        override fun serialize(
+            src: NewsfeedNewsfeedItemType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
 
-    class Serializer : JsonDeserializer<NewsfeedNewsfeedItemType> {
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): NewsfeedNewsfeedItemType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): NewsfeedNewsfeedItemType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedUnsubscribeType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedUnsubscribeType.kt
index 3e77b86bc7..b143fb50ea 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedUnsubscribeType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/dto/NewsfeedUnsubscribeType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.newsfeed.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -46,12 +51,23 @@ enum class NewsfeedUnsubscribeType(
 
     VIDEO("video");
 
-    class Serializer : JsonDeserializer<NewsfeedUnsubscribeType> {
+    class Serializer : JsonSerializer<NewsfeedUnsubscribeType>,
+            JsonDeserializer<NewsfeedUnsubscribeType> {
+        override fun serialize(
+            src: NewsfeedUnsubscribeType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): NewsfeedUnsubscribeType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): NewsfeedUnsubscribeType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/methods/NewsfeedIgnoreItem.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/methods/NewsfeedIgnoreItem.kt
index ed804e2b57..10921263c1 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/methods/NewsfeedIgnoreItem.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/newsfeed/methods/NewsfeedIgnoreItem.kt
@@ -40,18 +40,22 @@ import org.json.JSONObject
  * @param type Item type. Possible values: *'wall' - post on the wall,, *'tag' - tag on a photo,,
  * *'profilephoto' - profile photo,, *'video' - video,, *'audio' - audio. 
  * @param ownerId Item owner's identifier (user or community), "Note that community id must be
- * negative. 'owner_id=1' - user , 'owner_id=-1' - community " 
- * @param itemId Item identifier minimum 0
+ * negative. 'owner_id=1' - user , 'owner_id=-1' - community " default 0
+ * @param itemId Item identifier default 0 minimum 0
  */
 class NewsfeedIgnoreItem(
     private val type: String,
-    private val ownerId: Int,
-    private val itemId: Int
+    private val ownerId: Int? = null,
+    private val itemId: Int? = null
 ) : ApiRequestBase<BaseOkResponseDto>(methodName = "newsfeed.ignoreItem") {
     init {
         addParam("type", type)
-        addParam("owner_id", ownerId)
-        addParam("item_id", itemId)
+        ownerId?.let { value ->
+            addParam("owner_id", value)
+        }
+        itemId?.let { value ->
+            addParam("item_id", value)
+        }
     }
 
     override fun parse(r: JSONObject): BaseOkResponseDto = GsonHolder.gson.fromJson(r.toString(),
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/notes/dto/NotesGetCommentsSort.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/notes/dto/NotesGetCommentsSort.kt
index bf53e3c0ab..2b4a516396 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/notes/dto/NotesGetCommentsSort.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/notes/dto/NotesGetCommentsSort.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.notes.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -40,12 +45,23 @@ enum class NotesGetCommentsSort(
 
     ONE_(1);
 
-    class Serializer : JsonDeserializer<NotesGetCommentsSort> {
+    class Serializer : JsonSerializer<NotesGetCommentsSort>, JsonDeserializer<NotesGetCommentsSort>
+            {
+        override fun serialize(
+            src: NotesGetCommentsSort?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): NotesGetCommentsSort = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): NotesGetCommentsSort {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/notes/dto/NotesGetSort.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/notes/dto/NotesGetSort.kt
index 2d5054d2f3..b770e832a4 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/notes/dto/NotesGetSort.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/notes/dto/NotesGetSort.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.notes.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -40,12 +45,22 @@ enum class NotesGetSort(
 
     ONE_(1);
 
-    class Serializer : JsonDeserializer<NotesGetSort> {
+    class Serializer : JsonSerializer<NotesGetSort>, JsonDeserializer<NotesGetSort> {
+        override fun serialize(
+            src: NotesGetSort?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): NotesGetSort = values().first { it.value.toString() == json!!.asJsonPrimitive.toString()
-                }
+        ): NotesGetSort {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/notifications/dto/NotificationsGetFilters.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/notifications/dto/NotificationsGetFilters.kt
index 830abc5a6f..aab4e7c601 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/notifications/dto/NotificationsGetFilters.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/notifications/dto/NotificationsGetFilters.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.notifications.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -50,12 +55,23 @@ enum class NotificationsGetFilters(
 
     FRIENDS("friends");
 
-    class Serializer : JsonDeserializer<NotificationsGetFilters> {
+    class Serializer : JsonSerializer<NotificationsGetFilters>,
+            JsonDeserializer<NotificationsGetFilters> {
+        override fun serialize(
+            src: NotificationsGetFilters?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): NotificationsGetFilters = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): NotificationsGetFilters {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/notifications/dto/NotificationsNotificationParent.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/notifications/dto/NotificationsNotificationParent.kt
index 99a501d0e5..adaf206468 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/notifications/dto/NotificationsNotificationParent.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/notifications/dto/NotificationsNotificationParent.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.notifications.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import com.vk.sdk.api.base.dto.BaseBoolInt
 import com.vk.sdk.api.base.dto.BaseLikes
@@ -123,6 +128,9 @@ import kotlin.collections.List
  * @param liveStatus Live stream status
  * @param live 1 if the video is a live stream
  * @param upcoming 1 if the video is an upcoming stream
+ * @param liveStartTime Date in Unixtime when the live stream is scheduled to start by the author
+ * @param liveNotify Whether current user is subscribed to the upcoming live stream notification (if
+ * not subscribed to the author)
  * @param spectators Number of spectators of the stream
  * @param platform External platform
  * @param photo no description
@@ -269,6 +277,10 @@ data class NotificationsNotificationParent(
     val live: BasePropertyExists? = null,
     @SerializedName(value="upcoming")
     val upcoming: BasePropertyExists? = null,
+    @SerializedName(value="live_start_time")
+    val liveStartTime: Int? = null,
+    @SerializedName(value="live_notify")
+    val liveNotify: BaseBoolInt? = null,
     @SerializedName(value="spectators")
     val spectators: Int? = null,
     @SerializedName(value="platform")
@@ -291,12 +303,23 @@ data class NotificationsNotificationParent(
 
         MOVIE("movie");
 
-        class Serializer : JsonDeserializer<Type> {
+        class Serializer : JsonSerializer<Type>, JsonDeserializer<Type> {
+            override fun serialize(
+                src: Type?,
+                typeOfSrc: java.lang.reflect.Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: java.lang.reflect.Type?,
                 context: JsonDeserializationContext?
-            ): Type = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Type {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 
@@ -313,13 +336,23 @@ data class NotificationsNotificationParent(
 
         UPCOMING("upcoming");
 
-        class Serializer : JsonDeserializer<LiveStatus> {
+        class Serializer : JsonSerializer<LiveStatus>, JsonDeserializer<LiveStatus> {
+            override fun serialize(
+                src: LiveStatus?,
+                typeOfSrc: java.lang.reflect.Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: java.lang.reflect.Type?,
                 context: JsonDeserializationContext?
-            ): LiveStatus = values().first { it.value.toString() ==
-                    json!!.asJsonPrimitive.toString() }
+            ): LiveStatus {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/notifications/dto/NotificationsSendMessageError.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/notifications/dto/NotificationsSendMessageError.kt
index 6c57078d9f..cac73adde1 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/notifications/dto/NotificationsSendMessageError.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/notifications/dto/NotificationsSendMessageError.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.notifications.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import java.lang.reflect.Type
 import kotlin.Int
@@ -56,12 +61,23 @@ data class NotificationsSendMessageError(
 
         APP_IS_NOT_INSTALLED(4);
 
-        class Serializer : JsonDeserializer<Code> {
+        class Serializer : JsonSerializer<Code>, JsonDeserializer<Code> {
+            override fun serialize(
+                src: Code?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): Code = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Code {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/orders/dto/OrdersChangeStateAction.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/orders/dto/OrdersChangeStateAction.kt
index a3dc2d8552..67ae004500 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/orders/dto/OrdersChangeStateAction.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/orders/dto/OrdersChangeStateAction.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.orders.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,23 @@ enum class OrdersChangeStateAction(
 
     REFUND("refund");
 
-    class Serializer : JsonDeserializer<OrdersChangeStateAction> {
+    class Serializer : JsonSerializer<OrdersChangeStateAction>,
+            JsonDeserializer<OrdersChangeStateAction> {
+        override fun serialize(
+            src: OrdersChangeStateAction?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): OrdersChangeStateAction = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): OrdersChangeStateAction {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/owner/dto/OwnerState.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/owner/dto/OwnerState.kt
index 29cc4730ba..82ef0c13fb 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/owner/dto/OwnerState.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/owner/dto/OwnerState.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.owner.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import java.lang.reflect.Type
 import kotlin.Int
@@ -56,12 +61,23 @@ data class OwnerState(
 
         DELETED(4);
 
-        class Serializer : JsonDeserializer<State> {
+        class Serializer : JsonSerializer<State>, JsonDeserializer<State> {
+            override fun serialize(
+                src: State?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): State = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): State {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/pages/dto/PagesPrivacySettings.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/pages/dto/PagesPrivacySettings.kt
index 7b3d786a87..35848d5de7 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/pages/dto/PagesPrivacySettings.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/pages/dto/PagesPrivacySettings.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.pages.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,23 @@ enum class PagesPrivacySettings(
 
     EVERYONE(2);
 
-    class Serializer : JsonDeserializer<PagesPrivacySettings> {
+    class Serializer : JsonSerializer<PagesPrivacySettings>, JsonDeserializer<PagesPrivacySettings>
+            {
+        override fun serialize(
+            src: PagesPrivacySettings?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): PagesPrivacySettings = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): PagesPrivacySettings {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/pages/dto/PagesSaveAccessEdit.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/pages/dto/PagesSaveAccessEdit.kt
index bc0b56bc13..59c741eae2 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/pages/dto/PagesSaveAccessEdit.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/pages/dto/PagesSaveAccessEdit.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.pages.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,22 @@ enum class PagesSaveAccessEdit(
 
     ALL(2);
 
-    class Serializer : JsonDeserializer<PagesSaveAccessEdit> {
+    class Serializer : JsonSerializer<PagesSaveAccessEdit>, JsonDeserializer<PagesSaveAccessEdit> {
+        override fun serialize(
+            src: PagesSaveAccessEdit?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): PagesSaveAccessEdit = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): PagesSaveAccessEdit {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/pages/dto/PagesSaveAccessView.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/pages/dto/PagesSaveAccessView.kt
index 2bc4fa2e25..f2ddb383bb 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/pages/dto/PagesSaveAccessView.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/pages/dto/PagesSaveAccessView.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.pages.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,22 @@ enum class PagesSaveAccessView(
 
     ALL(2);
 
-    class Serializer : JsonDeserializer<PagesSaveAccessView> {
+    class Serializer : JsonSerializer<PagesSaveAccessView>, JsonDeserializer<PagesSaveAccessView> {
+        override fun serialize(
+            src: PagesSaveAccessView?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): PagesSaveAccessView = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): PagesSaveAccessView {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosGetCommentsSort.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosGetCommentsSort.kt
index c8e33cb5de..c008c15c77 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosGetCommentsSort.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosGetCommentsSort.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.photos.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,23 @@ enum class PhotosGetCommentsSort(
 
     NEW_FIRST("desc");
 
-    class Serializer : JsonDeserializer<PhotosGetCommentsSort> {
+    class Serializer : JsonSerializer<PhotosGetCommentsSort>,
+            JsonDeserializer<PhotosGetCommentsSort> {
+        override fun serialize(
+            src: PhotosGetCommentsSort?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): PhotosGetCommentsSort = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): PhotosGetCommentsSort {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosImageType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosImageType.kt
index a13a4e3d51..0ec6b55371 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosImageType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosImageType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.photos.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -58,12 +63,22 @@ enum class PhotosImageType(
 
     W("w");
 
-    class Serializer : JsonDeserializer<PhotosImageType> {
+    class Serializer : JsonSerializer<PhotosImageType>, JsonDeserializer<PhotosImageType> {
+        override fun serialize(
+            src: PhotosImageType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): PhotosImageType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): PhotosImageType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosPhotoSizesType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosPhotoSizesType.kt
index 48331b447c..0f9bdc54f5 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosPhotoSizesType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosPhotoSizesType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.photos.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -60,14 +65,49 @@ enum class PhotosPhotoSizesType(
 
     C("c"),
 
-    W("w");
+    W("w"),
+
+    A("a"),
+
+    B("b"),
+
+    E("e"),
+
+    I("i"),
+
+    D("d"),
+
+    J("j"),
+
+    TEMP("temp"),
+
+    H("h"),
+
+    G("g"),
+
+    N("n"),
+
+    F("f"),
+
+    MAX("max");
+
+    class Serializer : JsonSerializer<PhotosPhotoSizesType>, JsonDeserializer<PhotosPhotoSizesType>
+            {
+        override fun serialize(
+            src: PhotosPhotoSizesType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
 
-    class Serializer : JsonDeserializer<PhotosPhotoSizesType> {
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): PhotosPhotoSizesType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): PhotosPhotoSizesType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosPhotoUploadResponse.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosPhotoUploadResponse.kt
index 899f619207..6b692de4f3 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosPhotoUploadResponse.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosPhotoUploadResponse.kt
@@ -34,6 +34,7 @@ import kotlin.String
 /**
  * @param aid Album ID
  * @param hash Uploading hash
+ * @param photo Uploaded photo data
  * @param photosList Uploaded photos data
  * @param server Upload server number
  */
@@ -42,6 +43,8 @@ data class PhotosPhotoUploadResponse(
     val aid: Int? = null,
     @SerializedName(value="hash")
     val hash: String? = null,
+    @SerializedName(value="photo")
+    val photo: String? = null,
     @SerializedName(value="photos_list")
     val photosList: String? = null,
     @SerializedName(value="server")
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosReportCommentReason.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosReportCommentReason.kt
index d037a43f70..b60c774c1f 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosReportCommentReason.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosReportCommentReason.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.photos.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -50,12 +55,23 @@ enum class PhotosReportCommentReason(
 
     INSULT_ABUSE(6);
 
-    class Serializer : JsonDeserializer<PhotosReportCommentReason> {
+    class Serializer : JsonSerializer<PhotosReportCommentReason>,
+            JsonDeserializer<PhotosReportCommentReason> {
+        override fun serialize(
+            src: PhotosReportCommentReason?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): PhotosReportCommentReason = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): PhotosReportCommentReason {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosReportReason.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosReportReason.kt
index f0b59d2dd1..0b0d6859b0 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosReportReason.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosReportReason.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.photos.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -50,12 +55,22 @@ enum class PhotosReportReason(
 
     INSULT_ABUSE(6);
 
-    class Serializer : JsonDeserializer<PhotosReportReason> {
+    class Serializer : JsonSerializer<PhotosReportReason>, JsonDeserializer<PhotosReportReason> {
+        override fun serialize(
+            src: PhotosReportReason?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): PhotosReportReason = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): PhotosReportReason {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosTagsSuggestionItemButton.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosTagsSuggestionItemButton.kt
index d8035e6ae2..a4858e7425 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosTagsSuggestionItemButton.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/dto/PhotosTagsSuggestionItemButton.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.photos.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import java.lang.reflect.Type
 import kotlin.String
@@ -56,12 +61,23 @@ data class PhotosTagsSuggestionItemButton(
 
         SHOW_TAGS("show_tags");
 
-        class Serializer : JsonDeserializer<Action> {
+        class Serializer : JsonSerializer<Action>, JsonDeserializer<Action> {
+            override fun serialize(
+                src: Action?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): Action = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Action {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 
@@ -72,12 +88,23 @@ data class PhotosTagsSuggestionItemButton(
 
         SECONDARY("secondary");
 
-        class Serializer : JsonDeserializer<Style> {
+        class Serializer : JsonSerializer<Style>, JsonDeserializer<Style> {
+            override fun serialize(
+                src: Style?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): Style = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Style {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/methods/PhotosPutTag.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/methods/PhotosPutTag.kt
index ead81be12d..7e89f560ea 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/methods/PhotosPutTag.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/photos/methods/PhotosPutTag.kt
@@ -38,7 +38,7 @@ import org.json.JSONObject
  * Adds a tag on the photo.
  * @param photoId Photo ID. minimum 0
  * @param userId ID of the user to be tagged. 
- * @param ownerId ID of the user or community that owns the photo. minimum 0
+ * @param ownerId ID of the user or community that owns the photo. 
  * @param x Upper left-corner coordinate of the tagged area (as a percentage of the photo's width). 
  * @param y Upper left-corner coordinate of the tagged area (as a percentage of the photo's height).
  * 
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/polls/dto/PollsBackground.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/polls/dto/PollsBackground.kt
index 327b9523ef..0d5e2b9abe 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/polls/dto/PollsBackground.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/polls/dto/PollsBackground.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.polls.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import com.vk.sdk.api.base.dto.BaseGradientPoint
 import com.vk.sdk.api.base.dto.BaseImage
@@ -75,12 +80,23 @@ data class PollsBackground(
 
         TILE("tile");
 
-        class Serializer : JsonDeserializer<Type> {
+        class Serializer : JsonSerializer<Type>, JsonDeserializer<Type> {
+            override fun serialize(
+                src: Type?,
+                typeOfSrc: java.lang.reflect.Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: java.lang.reflect.Type?,
                 context: JsonDeserializationContext?
-            ): Type = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Type {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/polls/dto/PollsCreateBackgroundId.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/polls/dto/PollsCreateBackgroundId.kt
index 923357fe07..fec28a6e12 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/polls/dto/PollsCreateBackgroundId.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/polls/dto/PollsCreateBackgroundId.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.polls.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -50,12 +55,23 @@ enum class PollsCreateBackgroundId(
 
     NINE_("9");
 
-    class Serializer : JsonDeserializer<PollsCreateBackgroundId> {
+    class Serializer : JsonSerializer<PollsCreateBackgroundId>,
+            JsonDeserializer<PollsCreateBackgroundId> {
+        override fun serialize(
+            src: PollsCreateBackgroundId?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): PollsCreateBackgroundId = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): PollsCreateBackgroundId {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/polls/dto/PollsEditBackgroundId.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/polls/dto/PollsEditBackgroundId.kt
index c5443fc511..1171b22f48 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/polls/dto/PollsEditBackgroundId.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/polls/dto/PollsEditBackgroundId.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.polls.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -52,12 +57,23 @@ enum class PollsEditBackgroundId(
 
     NINE_("9");
 
-    class Serializer : JsonDeserializer<PollsEditBackgroundId> {
+    class Serializer : JsonSerializer<PollsEditBackgroundId>,
+            JsonDeserializer<PollsEditBackgroundId> {
+        override fun serialize(
+            src: PollsEditBackgroundId?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): PollsEditBackgroundId = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): PollsEditBackgroundId {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/polls/dto/PollsGetByIdNameCase.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/polls/dto/PollsGetByIdNameCase.kt
index 350c3c225b..a081d43373 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/polls/dto/PollsGetByIdNameCase.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/polls/dto/PollsGetByIdNameCase.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.polls.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -48,12 +53,23 @@ enum class PollsGetByIdNameCase(
 
     NOM("nom");
 
-    class Serializer : JsonDeserializer<PollsGetByIdNameCase> {
+    class Serializer : JsonSerializer<PollsGetByIdNameCase>, JsonDeserializer<PollsGetByIdNameCase>
+            {
+        override fun serialize(
+            src: PollsGetByIdNameCase?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): PollsGetByIdNameCase = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): PollsGetByIdNameCase {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/polls/dto/PollsGetVotersNameCase.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/polls/dto/PollsGetVotersNameCase.kt
index 5eddab5635..aa71b55e8e 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/polls/dto/PollsGetVotersNameCase.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/polls/dto/PollsGetVotersNameCase.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.polls.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -48,12 +53,23 @@ enum class PollsGetVotersNameCase(
 
     PREPOSITIONAL("abl");
 
-    class Serializer : JsonDeserializer<PollsGetVotersNameCase> {
+    class Serializer : JsonSerializer<PollsGetVotersNameCase>,
+            JsonDeserializer<PollsGetVotersNameCase> {
+        override fun serialize(
+            src: PollsGetVotersNameCase?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): PollsGetVotersNameCase = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): PollsGetVotersNameCase {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/search/dto/SearchHintType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/search/dto/SearchHintType.kt
index 7d43fadcb8..f494557af8 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/search/dto/SearchHintType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/search/dto/SearchHintType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.search.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -46,12 +51,22 @@ enum class SearchHintType(
 
     HTML5_GAME("html5_game");
 
-    class Serializer : JsonDeserializer<SearchHintType> {
+    class Serializer : JsonSerializer<SearchHintType>, JsonDeserializer<SearchHintType> {
+        override fun serialize(
+            src: SearchHintType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): SearchHintType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): SearchHintType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/stats/dto/StatsGetInterval.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/stats/dto/StatsGetInterval.kt
index 025eb39ace..565e198c0e 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/stats/dto/StatsGetInterval.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/stats/dto/StatsGetInterval.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.stats.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -46,12 +51,22 @@ enum class StatsGetInterval(
 
     YEAR("year");
 
-    class Serializer : JsonDeserializer<StatsGetInterval> {
+    class Serializer : JsonSerializer<StatsGetInterval>, JsonDeserializer<StatsGetInterval> {
+        override fun serialize(
+            src: StatsGetInterval?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): StatsGetInterval = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): StatsGetInterval {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/stories/dto/StoriesClickableSticker.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/stories/dto/StoriesClickableSticker.kt
index ba6c84e45b..2046c7b7b1 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/stories/dto/StoriesClickableSticker.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/stories/dto/StoriesClickableSticker.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.stories.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import com.vk.sdk.api.apps.dto.AppsAppMin
 import com.vk.sdk.api.audio.dto.AudioAudio
@@ -69,6 +74,7 @@ import kotlin.collections.List
  * @param appContext Additional context for app sticker
  * @param hasNewInteractions Whether current user has unread interaction with this app
  * @param isBroadcastNotifyAllowed Whether current user allowed broadcast notify from this app
+ * @param situationalThemeId no description
  */
 data class StoriesClickableSticker(
     @SerializedName(value="clickable_area")
@@ -124,7 +130,9 @@ data class StoriesClickableSticker(
     @SerializedName(value="has_new_interactions")
     val hasNewInteractions: Boolean? = null,
     @SerializedName(value="is_broadcast_notify_allowed")
-    val isBroadcastNotifyAllowed: Boolean? = null
+    val isBroadcastNotifyAllowed: Boolean? = null,
+    @SerializedName(value="situational_theme_id")
+    val situationalThemeId: Int? = null
 ) {
     enum class Subtype(
         val value: String
@@ -133,12 +141,23 @@ data class StoriesClickableSticker(
 
         ALIEXPRESS_PRODUCT("aliexpress_product");
 
-        class Serializer : JsonDeserializer<Subtype> {
+        class Serializer : JsonSerializer<Subtype>, JsonDeserializer<Subtype> {
+            override fun serialize(
+                src: Subtype?,
+                typeOfSrc: java.lang.reflect.Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: java.lang.reflect.Type?,
                 context: JsonDeserializationContext?
-            ): Subtype = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Subtype {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 
@@ -165,12 +184,23 @@ data class StoriesClickableSticker(
 
         IMPRESSIVE("impressive");
 
-        class Serializer : JsonDeserializer<Style> {
+        class Serializer : JsonSerializer<Style>, JsonDeserializer<Style> {
+            override fun serialize(
+                src: Style?,
+                typeOfSrc: java.lang.reflect.Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: java.lang.reflect.Type?,
                 context: JsonDeserializationContext?
-            ): Style = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Style {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 
@@ -201,14 +231,27 @@ data class StoriesClickableSticker(
 
         STICKER("sticker"),
 
-        APP("app");
+        APP("app"),
+
+        SITUATIONAL_THEME("situational_theme");
+
+        class Serializer : JsonSerializer<Type>, JsonDeserializer<Type> {
+            override fun serialize(
+                src: Type?,
+                typeOfSrc: java.lang.reflect.Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
 
-        class Serializer : JsonDeserializer<Type> {
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: java.lang.reflect.Type?,
                 context: JsonDeserializationContext?
-            ): Type = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Type {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/stories/dto/StoriesFeedItem.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/stories/dto/StoriesFeedItem.kt
index 6bb00e6f8f..4431bd5dab 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/stories/dto/StoriesFeedItem.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/stories/dto/StoriesFeedItem.kt
@@ -30,22 +30,32 @@ package com.vk.sdk.api.stories.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import com.vk.sdk.api.apps.dto.AppsAppMin
+import kotlin.Int
 import kotlin.String
 import kotlin.collections.List
 
 /**
  * @param type Type of Feed Item
+ * @param id no description
  * @param stories Author stories
  * @param grouped Grouped stories of various authors (for types
  * community_grouped_stories/app_grouped_stories type)
  * @param app App, which stories has been grouped (for type app_grouped_stories)
  * @param promoData Additional data for promo stories (for type promo_stories)
+ * @param birthdayUserId no description
  */
 data class StoriesFeedItem(
     @SerializedName(value="type")
     val type: Type,
+    @SerializedName(value="id")
+    val id: String? = null,
     @SerializedName(value="stories")
     val stories: List<StoriesStory>? = null,
     @SerializedName(value="grouped")
@@ -53,7 +63,9 @@ data class StoriesFeedItem(
     @SerializedName(value="app")
     val app: AppsAppMin? = null,
     @SerializedName(value="promo_data")
-    val promoData: StoriesPromoBlock? = null
+    val promoData: StoriesPromoBlock? = null,
+    @SerializedName(value="birthday_user_id")
+    val birthdayUserId: Int? = null
 ) {
     enum class Type(
         val value: String
@@ -72,12 +84,23 @@ data class StoriesFeedItem(
 
         BIRTHDAY("birthday");
 
-        class Serializer : JsonDeserializer<Type> {
+        class Serializer : JsonSerializer<Type>, JsonDeserializer<Type> {
+            override fun serialize(
+                src: Type?,
+                typeOfSrc: java.lang.reflect.Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: java.lang.reflect.Type?,
                 context: JsonDeserializationContext?
-            ): Type = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Type {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/stories/dto/StoriesStoryStatsState.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/stories/dto/StoriesStoryStatsState.kt
index d73d240f76..7c075261ca 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/stories/dto/StoriesStoryStatsState.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/stories/dto/StoriesStoryStatsState.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.stories.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,23 @@ enum class StoriesStoryStatsState(
 
     HIDDEN("hidden");
 
-    class Serializer : JsonDeserializer<StoriesStoryStatsState> {
+    class Serializer : JsonSerializer<StoriesStoryStatsState>,
+            JsonDeserializer<StoriesStoryStatsState> {
+        override fun serialize(
+            src: StoriesStoryStatsState?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): StoriesStoryStatsState = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): StoriesStoryStatsState {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/stories/dto/StoriesStoryType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/stories/dto/StoriesStoryType.kt
index 97c8a5f73e..bb28a7bc70 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/stories/dto/StoriesStoryType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/stories/dto/StoriesStoryType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.stories.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -46,12 +51,22 @@ enum class StoriesStoryType(
 
     BIRTHDAY_INVITE("birthday_invite");
 
-    class Serializer : JsonDeserializer<StoriesStoryType> {
+    class Serializer : JsonSerializer<StoriesStoryType>, JsonDeserializer<StoriesStoryType> {
+        override fun serialize(
+            src: StoriesStoryType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): StoriesStoryType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): StoriesStoryType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/stories/dto/StoriesUploadLinkText.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/stories/dto/StoriesUploadLinkText.kt
index cf43bb5bb6..9d83676bdc 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/stories/dto/StoriesUploadLinkText.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/stories/dto/StoriesUploadLinkText.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.stories.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -78,12 +83,23 @@ enum class StoriesUploadLinkText(
 
     CALENDAR("calendar");
 
-    class Serializer : JsonDeserializer<StoriesUploadLinkText> {
+    class Serializer : JsonSerializer<StoriesUploadLinkText>,
+            JsonDeserializer<StoriesUploadLinkText> {
+        override fun serialize(
+            src: StoriesUploadLinkText?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): StoriesUploadLinkText = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): StoriesUploadLinkText {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/streaming/dto/StreamingGetStatsInterval.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/streaming/dto/StreamingGetStatsInterval.kt
index 5488fa5c29..7033ee9df7 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/streaming/dto/StreamingGetStatsInterval.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/streaming/dto/StreamingGetStatsInterval.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.streaming.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,23 @@ enum class StreamingGetStatsInterval(
 
     FIVE_M("5m");
 
-    class Serializer : JsonDeserializer<StreamingGetStatsInterval> {
+    class Serializer : JsonSerializer<StreamingGetStatsInterval>,
+            JsonDeserializer<StreamingGetStatsInterval> {
+        override fun serialize(
+            src: StreamingGetStatsInterval?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): StreamingGetStatsInterval = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): StreamingGetStatsInterval {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/streaming/dto/StreamingGetStatsType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/streaming/dto/StreamingGetStatsType.kt
index 8e5992086b..c8cfc9338b 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/streaming/dto/StreamingGetStatsType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/streaming/dto/StreamingGetStatsType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.streaming.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,23 @@ enum class StreamingGetStatsType(
 
     RECEIVED("received");
 
-    class Serializer : JsonDeserializer<StreamingGetStatsType> {
+    class Serializer : JsonSerializer<StreamingGetStatsType>,
+            JsonDeserializer<StreamingGetStatsType> {
+        override fun serialize(
+            src: StreamingGetStatsType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): StreamingGetStatsType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): StreamingGetStatsType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/streaming/dto/StreamingSetSettingsMonthlyTier.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/streaming/dto/StreamingSetSettingsMonthlyTier.kt
index adebaea707..8c6865a822 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/streaming/dto/StreamingSetSettingsMonthlyTier.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/streaming/dto/StreamingSetSettingsMonthlyTier.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.streaming.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -50,12 +55,23 @@ enum class StreamingSetSettingsMonthlyTier(
 
     UNLIMITED("unlimited");
 
-    class Serializer : JsonDeserializer<StreamingSetSettingsMonthlyTier> {
+    class Serializer : JsonSerializer<StreamingSetSettingsMonthlyTier>,
+            JsonDeserializer<StreamingSetSettingsMonthlyTier> {
+        override fun serialize(
+            src: StreamingSetSettingsMonthlyTier?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): StreamingSetSettingsMonthlyTier = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): StreamingSetSettingsMonthlyTier {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersCareer.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersCareer.kt
index 9a31237f2f..860253c6a8 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersCareer.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersCareer.kt
@@ -33,6 +33,7 @@ import kotlin.String
 
 /**
  * @param cityId City ID
+ * @param cityName City name
  * @param company Company name
  * @param countryId Country ID
  * @param from From year
@@ -44,6 +45,8 @@ import kotlin.String
 data class UsersCareer(
     @SerializedName(value="city_id")
     val cityId: Int? = null,
+    @SerializedName(value="city_name")
+    val cityName: String? = null,
     @SerializedName(value="company")
     val company: String? = null,
     @SerializedName(value="country_id")
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersFields.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersFields.kt
index 0be8aa8cd0..9c3dda828f 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersFields.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersFields.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.users.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -60,12 +65,16 @@ enum class UsersFields(
 
     PHOTO_200("photo_200"),
 
+    PHOTO_400("photo_400"),
+
     PHOTO_400_ORIG("photo_400_orig"),
 
     PHOTO_MAX("photo_max"),
 
     PHOTO_MAX_ORIG("photo_max_orig"),
 
+    PHOTO_MAX_SIZE("photo_max_size"),
+
     ONLINE("online"),
 
     LISTS("lists"),
@@ -180,13 +189,28 @@ enum class UsersFields(
 
     VIDEO_LIVE_COUNT("video_live_count"),
 
-    CLIPS_COUNT("clips_count");
+    CLIPS_COUNT("clips_count"),
+
+    SERVICE_DESCRIPTION("service_description"),
+
+    IS_DEAD("is_dead");
+
+    class Serializer : JsonSerializer<UsersFields>, JsonDeserializer<UsersFields> {
+        override fun serialize(
+            src: UsersFields?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
 
-    class Serializer : JsonDeserializer<UsersFields> {
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): UsersFields = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+        ): UsersFields {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersGetFollowersNameCase.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersGetFollowersNameCase.kt
index 714b22d10f..8fef5c0a96 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersGetFollowersNameCase.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersGetFollowersNameCase.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.users.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -48,12 +53,23 @@ enum class UsersGetFollowersNameCase(
 
     PREPOSITIONAL("abl");
 
-    class Serializer : JsonDeserializer<UsersGetFollowersNameCase> {
+    class Serializer : JsonSerializer<UsersGetFollowersNameCase>,
+            JsonDeserializer<UsersGetFollowersNameCase> {
+        override fun serialize(
+            src: UsersGetFollowersNameCase?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): UsersGetFollowersNameCase = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): UsersGetFollowersNameCase {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersGetNameCase.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersGetNameCase.kt
index 1574e0e1ee..ef1a4d1b8e 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersGetNameCase.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersGetNameCase.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.users.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -48,12 +53,22 @@ enum class UsersGetNameCase(
 
     PREPOSITIONAL("abl");
 
-    class Serializer : JsonDeserializer<UsersGetNameCase> {
+    class Serializer : JsonSerializer<UsersGetNameCase>, JsonDeserializer<UsersGetNameCase> {
+        override fun serialize(
+            src: UsersGetNameCase?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): UsersGetNameCase = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): UsersGetNameCase {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersOnlineInfo.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersOnlineInfo.kt
index 5a6add9d22..595dfe408e 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersOnlineInfo.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersOnlineInfo.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.users.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import java.lang.reflect.Type
 import kotlin.Boolean
@@ -72,12 +77,23 @@ data class UsersOnlineInfo(
 
         NOT_SHOW("not_show");
 
-        class Serializer : JsonDeserializer<Status> {
+        class Serializer : JsonSerializer<Status>, JsonDeserializer<Status> {
+            override fun serialize(
+                src: Status?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): Status = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Status {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersRelative.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersRelative.kt
index b2edf3280b..56cfaeffc8 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersRelative.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersRelative.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.users.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import kotlin.Int
 import kotlin.String
@@ -63,12 +68,23 @@ data class UsersRelative(
 
         SIBLING("sibling");
 
-        class Serializer : JsonDeserializer<Type> {
+        class Serializer : JsonSerializer<Type>, JsonDeserializer<Type> {
+            override fun serialize(
+                src: Type?,
+                typeOfSrc: java.lang.reflect.Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: java.lang.reflect.Type?,
                 context: JsonDeserializationContext?
-            ): Type = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Type {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersReportType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersReportType.kt
index 831e4ba5b4..534752e153 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersReportType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersReportType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.users.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -44,12 +49,22 @@ enum class UsersReportType(
 
     ADVERTISEMENT("advertisement");
 
-    class Serializer : JsonDeserializer<UsersReportType> {
+    class Serializer : JsonSerializer<UsersReportType>, JsonDeserializer<UsersReportType> {
+        override fun serialize(
+            src: UsersReportType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): UsersReportType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): UsersReportType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersSchool.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersSchool.kt
index e1aaadce43..c5cb6dbe53 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersSchool.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersSchool.kt
@@ -42,6 +42,7 @@ import kotlin.String
  * @param yearFrom Year the user started to study
  * @param yearGraduated Graduation year
  * @param yearTo Year the user finished to study
+ * @param speciality no description
  */
 data class UsersSchool(
     @SerializedName(value="city")
@@ -63,5 +64,7 @@ data class UsersSchool(
     @SerializedName(value="year_graduated")
     val yearGraduated: Int? = null,
     @SerializedName(value="year_to")
-    val yearTo: Int? = null
+    val yearTo: Int? = null,
+    @SerializedName(value="speciality")
+    val speciality: String? = null
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersSearchSex.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersSearchSex.kt
index 71f30e16a7..98fde3a82f 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersSearchSex.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersSearchSex.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.users.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,22 @@ enum class UsersSearchSex(
 
     MALE(2);
 
-    class Serializer : JsonDeserializer<UsersSearchSex> {
+    class Serializer : JsonSerializer<UsersSearchSex>, JsonDeserializer<UsersSearchSex> {
+        override fun serialize(
+            src: UsersSearchSex?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): UsersSearchSex = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): UsersSearchSex {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersSearchSort.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersSearchSort.kt
index d2700101aa..c963632de5 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersSearchSort.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersSearchSort.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.users.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -40,12 +45,22 @@ enum class UsersSearchSort(
 
     BY_DATE_REGISTERED(1);
 
-    class Serializer : JsonDeserializer<UsersSearchSort> {
+    class Serializer : JsonSerializer<UsersSearchSort>, JsonDeserializer<UsersSearchSort> {
+        override fun serialize(
+            src: UsersSearchSort?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): UsersSearchSort = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): UsersSearchSort {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersSearchStatus.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersSearchStatus.kt
index 7b3f486df5..41858bdd63 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersSearchStatus.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersSearchStatus.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.users.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -52,12 +57,22 @@ enum class UsersSearchStatus(
 
     IN_LOVE(7);
 
-    class Serializer : JsonDeserializer<UsersSearchStatus> {
+    class Serializer : JsonSerializer<UsersSearchStatus>, JsonDeserializer<UsersSearchStatus> {
+        override fun serialize(
+            src: UsersSearchStatus?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): UsersSearchStatus = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): UsersSearchStatus {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUniversity.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUniversity.kt
index cd2c79e608..c3646df042 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUniversity.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUniversity.kt
@@ -43,6 +43,7 @@ import kotlin.String
  * @param graduation Graduation year
  * @param id University ID
  * @param name University name
+ * @param universityGroupId no description
  */
 data class UsersUniversity(
     @SerializedName(value="chair")
@@ -66,5 +67,7 @@ data class UsersUniversity(
     @SerializedName(value="id")
     val id: Int? = null,
     @SerializedName(value="name")
-    val name: String? = null
+    val name: String? = null,
+    @SerializedName(value="university_group_id")
+    val universityGroupId: Int? = null
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUserCounters.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUserCounters.kt
index 5157404964..ef98f1c099 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUserCounters.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUserCounters.kt
@@ -45,6 +45,15 @@ import kotlin.Int
  * @param userPhotos Number of photos with user
  * @param userVideos Number of videos with user
  * @param videos Videos number
+ * @param newPhotoTags no description
+ * @param newRecognitionTags no description
+ * @param mutualFriends no description
+ * @param posts no description
+ * @param articles no description
+ * @param wishes no description
+ * @param podcasts no description
+ * @param clips no description
+ * @param clipsFollowers no description
  */
 data class UsersUserCounters(
     @SerializedName(value="albums")
@@ -74,5 +83,23 @@ data class UsersUserCounters(
     @SerializedName(value="user_videos")
     val userVideos: Int? = null,
     @SerializedName(value="videos")
-    val videos: Int? = null
+    val videos: Int? = null,
+    @SerializedName(value="new_photo_tags")
+    val newPhotoTags: Int? = null,
+    @SerializedName(value="new_recognition_tags")
+    val newRecognitionTags: Int? = null,
+    @SerializedName(value="mutual_friends")
+    val mutualFriends: Int? = null,
+    @SerializedName(value="posts")
+    val posts: Int? = null,
+    @SerializedName(value="articles")
+    val articles: Int? = null,
+    @SerializedName(value="wishes")
+    val wishes: Int? = null,
+    @SerializedName(value="podcasts")
+    val podcasts: Int? = null,
+    @SerializedName(value="clips")
+    val clips: Int? = null,
+    @SerializedName(value="clips_followers")
+    val clipsFollowers: Int? = null
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUserFull.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUserFull.kt
index 9c76b17e78..04ce0932d7 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUserFull.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUserFull.kt
@@ -27,6 +27,14 @@
 // *********************************************************************
 package com.vk.sdk.api.users.dto
 
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import com.vk.sdk.api.audio.dto.AudioAudio
 import com.vk.sdk.api.base.dto.BaseBoolInt
@@ -37,7 +45,11 @@ import com.vk.sdk.api.base.dto.BaseSex
 import com.vk.sdk.api.friends.dto.FriendsFriendStatusStatus
 import com.vk.sdk.api.friends.dto.FriendsRequestsMutual
 import com.vk.sdk.api.owner.dto.OwnerState
+import com.vk.sdk.api.photos.dto.PhotosPhoto
+import com.vk.sdk.api.video.dto.VideoLiveInfo
+import java.lang.reflect.Type
 import kotlin.Boolean
+import kotlin.Float
 import kotlin.Int
 import kotlin.String
 import kotlin.collections.List
@@ -57,6 +69,7 @@ import kotlin.collections.List
  * @param lastNameAbl User's last name in prepositional case
  * @param nickname User nickname
  * @param maidenName User maiden name
+ * @param contactName User contact name
  * @param domain Domain name of the user's page
  * @param bdate User's date of birth
  * @param city no description
@@ -76,6 +89,38 @@ import kotlin.collections.List
  * @param canPost Information whether current user can post on the user's wall
  * @param canSeeAllPosts Information whether current user can see other users' audio on the wall
  * @param canSeeAudio Information whether current user can see the user's audio
+ * @param type no description
+ * @param email no description
+ * @param skype no description
+ * @param facebook no description
+ * @param facebookName no description
+ * @param twitter no description
+ * @param livejournal no description
+ * @param instagram no description
+ * @param test no description
+ * @param videoLive no description
+ * @param isVideoLiveNotificationsBlocked no description
+ * @param isService no description
+ * @param serviceDescription no description
+ * @param photo no description
+ * @param photoBig no description
+ * @param photo400 no description
+ * @param photoMaxSize no description
+ * @param language no description
+ * @param storiesArchiveCount no description
+ * @param wallDefault no description
+ * @param canCall Information whether current user can call
+ * @param canSeeWishes Information whether current user can see the user's wishes
+ * @param canSeeGifts Information whether current user can see the user's gifts
+ * @param interests no description
+ * @param books no description
+ * @param tv no description
+ * @param quotes no description
+ * @param about no description
+ * @param games no description
+ * @param movies no description
+ * @param activities no description
+ * @param music no description
  * @param canWritePrivateMessage Information whether current user can write private message
  * @param canSendFriendRequest Information whether current user can send a friend request
  * @param canBeInvitedGroup Information whether current user can be invited to the community
@@ -91,6 +136,7 @@ import kotlin.collections.List
  * @param followersCount Number of user's followers
  * @param videoLiveLevel User level in live streams achievements
  * @param videoLiveCount Number of user's live streams
+ * @param clipsCount Number of user's clips
  * @param blacklisted Information whether current user is in the requested user's blacklist.
  * @param blacklistedByMe Information whether the requested user is in current user's blacklist
  * @param isFavorite Information whether the requested user is in faves of current user
@@ -102,6 +148,7 @@ import kotlin.collections.List
  * @param military no description
  * @param university University ID
  * @param universityName University name
+ * @param universityGroupId no description
  * @param faculty Faculty ID
  * @param facultyName Faculty name
  * @param graduation Graduation year
@@ -117,6 +164,11 @@ import kotlin.collections.List
  * @param isSubscribedPodcasts Information whether current user is subscribed to podcasts
  * @param canSubscribePodcasts Owner in whitelist or not
  * @param canSubscribePosts Can subscribe to wall
+ * @param counters no description
+ * @param accessKey no description
+ * @param canUploadDoc no description
+ * @param hash no description
+ * @param hasEmail no description
  * @param sex User sex
  * @param screenName Domain name of the user's page
  * @param photo50 URL of square photo of the user with 50 pixels in width
@@ -166,6 +218,8 @@ data class UsersUserFull(
     val nickname: String? = null,
     @SerializedName(value="maiden_name")
     val maidenName: String? = null,
+    @SerializedName(value="contact_name")
+    val contactName: String? = null,
     @SerializedName(value="domain")
     val domain: String? = null,
     @SerializedName(value="bdate")
@@ -175,7 +229,7 @@ data class UsersUserFull(
     @SerializedName(value="country")
     val country: BaseCountry? = null,
     @SerializedName(value="timezone")
-    val timezone: Int? = null,
+    val timezone: Float? = null,
     @SerializedName(value="owner_state")
     val ownerState: OwnerState? = null,
     @SerializedName(value="photo_200")
@@ -204,6 +258,70 @@ data class UsersUserFull(
     val canSeeAllPosts: BaseBoolInt? = null,
     @SerializedName(value="can_see_audio")
     val canSeeAudio: BaseBoolInt? = null,
+    @SerializedName(value="type")
+    val type: UsersUserType? = null,
+    @SerializedName(value="email")
+    val email: String? = null,
+    @SerializedName(value="skype")
+    val skype: String? = null,
+    @SerializedName(value="facebook")
+    val facebook: String? = null,
+    @SerializedName(value="facebook_name")
+    val facebookName: String? = null,
+    @SerializedName(value="twitter")
+    val twitter: String? = null,
+    @SerializedName(value="livejournal")
+    val livejournal: String? = null,
+    @SerializedName(value="instagram")
+    val instagram: String? = null,
+    @SerializedName(value="test")
+    val test: BaseBoolInt? = null,
+    @SerializedName(value="video_live")
+    val videoLive: VideoLiveInfo? = null,
+    @SerializedName(value="is_video_live_notifications_blocked")
+    val isVideoLiveNotificationsBlocked: BaseBoolInt? = null,
+    @SerializedName(value="is_service")
+    val isService: Boolean? = null,
+    @SerializedName(value="service_description")
+    val serviceDescription: String? = null,
+    @SerializedName(value="photo")
+    val photo: String? = null,
+    @SerializedName(value="photo_big")
+    val photoBig: String? = null,
+    @SerializedName(value="photo_400")
+    val photo400: String? = null,
+    @SerializedName(value="photo_max_size")
+    val photoMaxSize: PhotosPhoto? = null,
+    @SerializedName(value="language")
+    val language: String? = null,
+    @SerializedName(value="stories_archive_count")
+    val storiesArchiveCount: Int? = null,
+    @SerializedName(value="wall_default")
+    val wallDefault: WallDefault? = null,
+    @SerializedName(value="can_call")
+    val canCall: Boolean? = null,
+    @SerializedName(value="can_see_wishes")
+    val canSeeWishes: Boolean? = null,
+    @SerializedName(value="can_see_gifts")
+    val canSeeGifts: BaseBoolInt? = null,
+    @SerializedName(value="interests")
+    val interests: String? = null,
+    @SerializedName(value="books")
+    val books: String? = null,
+    @SerializedName(value="tv")
+    val tv: String? = null,
+    @SerializedName(value="quotes")
+    val quotes: String? = null,
+    @SerializedName(value="about")
+    val about: String? = null,
+    @SerializedName(value="games")
+    val games: String? = null,
+    @SerializedName(value="movies")
+    val movies: String? = null,
+    @SerializedName(value="activities")
+    val activities: String? = null,
+    @SerializedName(value="music")
+    val music: String? = null,
     @SerializedName(value="can_write_private_message")
     val canWritePrivateMessage: BaseBoolInt? = null,
     @SerializedName(value="can_send_friend_request")
@@ -234,6 +352,8 @@ data class UsersUserFull(
     val videoLiveLevel: Int? = null,
     @SerializedName(value="video_live_count")
     val videoLiveCount: Int? = null,
+    @SerializedName(value="clips_count")
+    val clipsCount: Int? = null,
     @SerializedName(value="blacklisted")
     val blacklisted: BaseBoolInt? = null,
     @SerializedName(value="blacklisted_by_me")
@@ -254,6 +374,8 @@ data class UsersUserFull(
     val university: Int? = null,
     @SerializedName(value="university_name")
     val universityName: String? = null,
+    @SerializedName(value="university_group_id")
+    val universityGroupId: Int? = null,
     @SerializedName(value="faculty")
     val faculty: Int? = null,
     @SerializedName(value="faculty_name")
@@ -284,6 +406,16 @@ data class UsersUserFull(
     val canSubscribePodcasts: Boolean? = null,
     @SerializedName(value="can_subscribe_posts")
     val canSubscribePosts: Boolean? = null,
+    @SerializedName(value="counters")
+    val counters: UsersUserCounters? = null,
+    @SerializedName(value="access_key")
+    val accessKey: String? = null,
+    @SerializedName(value="can_upload_doc")
+    val canUploadDoc: BaseBoolInt? = null,
+    @SerializedName(value="hash")
+    val hash: String? = null,
+    @SerializedName(value="has_email")
+    val hasEmail: Boolean? = null,
     @SerializedName(value="sex")
     val sex: BaseSex? = null,
     @SerializedName(value="screen_name")
@@ -322,4 +454,31 @@ data class UsersUserFull(
     val canAccessClosed: Boolean? = null,
     @SerializedName(value="is_closed")
     val isClosed: Boolean? = null
-)
+) {
+    enum class WallDefault(
+        val value: String
+    ) {
+        OWNER("owner"),
+
+        ALL("all");
+
+        class Serializer : JsonSerializer<WallDefault>, JsonDeserializer<WallDefault> {
+            override fun serialize(
+                src: WallDefault?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
+            override fun deserialize(
+                json: JsonElement?,
+                typeOfT: Type?,
+                context: JsonDeserializationContext?
+            ): WallDefault {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
+        }
+    }
+}
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUserRelation.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUserRelation.kt
index 2e1b1473f0..56c66f3ac5 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUserRelation.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUserRelation.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.users.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -54,12 +59,22 @@ enum class UsersUserRelation(
 
     IN_A_CIVIL_UNION(8);
 
-    class Serializer : JsonDeserializer<UsersUserRelation> {
+    class Serializer : JsonSerializer<UsersUserRelation>, JsonDeserializer<UsersUserRelation> {
+        override fun serialize(
+            src: UsersUserRelation?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): UsersUserRelation = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): UsersUserRelation {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUserType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUserType.kt
index 50e3343432..cac7c02f54 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUserType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUserType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.users.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -38,12 +43,22 @@ enum class UsersUserType(
 ) {
     PROFILE("profile");
 
-    class Serializer : JsonDeserializer<UsersUserType> {
+    class Serializer : JsonSerializer<UsersUserType>, JsonDeserializer<UsersUserType> {
+        override fun serialize(
+            src: UsersUserType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): UsersUserType = values().first { it.value.toString() == json!!.asJsonPrimitive.toString()
-                }
+        ): UsersUserType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUserXtrCounters.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUserXtrCounters.kt
index 2e255a979b..0cc1f81bf8 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUserXtrCounters.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/users/dto/UsersUserXtrCounters.kt
@@ -27,6 +27,14 @@
 // *********************************************************************
 package com.vk.sdk.api.users.dto
 
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import com.vk.sdk.api.audio.dto.AudioAudio
 import com.vk.sdk.api.base.dto.BaseBoolInt
@@ -37,13 +45,16 @@ import com.vk.sdk.api.base.dto.BaseSex
 import com.vk.sdk.api.friends.dto.FriendsFriendStatusStatus
 import com.vk.sdk.api.friends.dto.FriendsRequestsMutual
 import com.vk.sdk.api.owner.dto.OwnerState
+import com.vk.sdk.api.photos.dto.PhotosPhoto
+import com.vk.sdk.api.video.dto.VideoLiveInfo
+import java.lang.reflect.Type
 import kotlin.Boolean
+import kotlin.Float
 import kotlin.Int
 import kotlin.String
 import kotlin.collections.List
 
 /**
- * @param counters no description
  * @param firstNameNom User's first name in nominative case
  * @param firstNameGen User's first name in genitive case
  * @param firstNameDat User's first name in dative case
@@ -58,6 +69,7 @@ import kotlin.collections.List
  * @param lastNameAbl User's last name in prepositional case
  * @param nickname User nickname
  * @param maidenName User maiden name
+ * @param contactName User contact name
  * @param domain Domain name of the user's page
  * @param bdate User's date of birth
  * @param city no description
@@ -77,6 +89,38 @@ import kotlin.collections.List
  * @param canPost Information whether current user can post on the user's wall
  * @param canSeeAllPosts Information whether current user can see other users' audio on the wall
  * @param canSeeAudio Information whether current user can see the user's audio
+ * @param type no description
+ * @param email no description
+ * @param skype no description
+ * @param facebook no description
+ * @param facebookName no description
+ * @param twitter no description
+ * @param livejournal no description
+ * @param instagram no description
+ * @param test no description
+ * @param videoLive no description
+ * @param isVideoLiveNotificationsBlocked no description
+ * @param isService no description
+ * @param serviceDescription no description
+ * @param photo no description
+ * @param photoBig no description
+ * @param photo400 no description
+ * @param photoMaxSize no description
+ * @param language no description
+ * @param storiesArchiveCount no description
+ * @param wallDefault no description
+ * @param canCall Information whether current user can call
+ * @param canSeeWishes Information whether current user can see the user's wishes
+ * @param canSeeGifts Information whether current user can see the user's gifts
+ * @param interests no description
+ * @param books no description
+ * @param tv no description
+ * @param quotes no description
+ * @param about no description
+ * @param games no description
+ * @param movies no description
+ * @param activities no description
+ * @param music no description
  * @param canWritePrivateMessage Information whether current user can write private message
  * @param canSendFriendRequest Information whether current user can send a friend request
  * @param canBeInvitedGroup Information whether current user can be invited to the community
@@ -92,6 +136,7 @@ import kotlin.collections.List
  * @param followersCount Number of user's followers
  * @param videoLiveLevel User level in live streams achievements
  * @param videoLiveCount Number of user's live streams
+ * @param clipsCount Number of user's clips
  * @param blacklisted Information whether current user is in the requested user's blacklist.
  * @param blacklistedByMe Information whether the requested user is in current user's blacklist
  * @param isFavorite Information whether the requested user is in faves of current user
@@ -103,6 +148,7 @@ import kotlin.collections.List
  * @param military no description
  * @param university University ID
  * @param universityName University name
+ * @param universityGroupId no description
  * @param faculty Faculty ID
  * @param facultyName Faculty name
  * @param graduation Graduation year
@@ -118,6 +164,11 @@ import kotlin.collections.List
  * @param isSubscribedPodcasts Information whether current user is subscribed to podcasts
  * @param canSubscribePodcasts Owner in whitelist or not
  * @param canSubscribePosts Can subscribe to wall
+ * @param counters no description
+ * @param accessKey no description
+ * @param canUploadDoc no description
+ * @param hash no description
+ * @param hasEmail no description
  * @param sex User sex
  * @param screenName Domain name of the user's page
  * @param photo50 URL of square photo of the user with 50 pixels in width
@@ -139,8 +190,6 @@ import kotlin.collections.List
  * @param isClosed no description
  */
 data class UsersUserXtrCounters(
-    @SerializedName(value="counters")
-    val counters: UsersUserCounters? = null,
     @SerializedName(value="first_name_nom")
     val firstNameNom: String? = null,
     @SerializedName(value="first_name_gen")
@@ -169,6 +218,8 @@ data class UsersUserXtrCounters(
     val nickname: String? = null,
     @SerializedName(value="maiden_name")
     val maidenName: String? = null,
+    @SerializedName(value="contact_name")
+    val contactName: String? = null,
     @SerializedName(value="domain")
     val domain: String? = null,
     @SerializedName(value="bdate")
@@ -178,7 +229,7 @@ data class UsersUserXtrCounters(
     @SerializedName(value="country")
     val country: BaseCountry? = null,
     @SerializedName(value="timezone")
-    val timezone: Int? = null,
+    val timezone: Float? = null,
     @SerializedName(value="owner_state")
     val ownerState: OwnerState? = null,
     @SerializedName(value="photo_200")
@@ -207,6 +258,70 @@ data class UsersUserXtrCounters(
     val canSeeAllPosts: BaseBoolInt? = null,
     @SerializedName(value="can_see_audio")
     val canSeeAudio: BaseBoolInt? = null,
+    @SerializedName(value="type")
+    val type: UsersUserType? = null,
+    @SerializedName(value="email")
+    val email: String? = null,
+    @SerializedName(value="skype")
+    val skype: String? = null,
+    @SerializedName(value="facebook")
+    val facebook: String? = null,
+    @SerializedName(value="facebook_name")
+    val facebookName: String? = null,
+    @SerializedName(value="twitter")
+    val twitter: String? = null,
+    @SerializedName(value="livejournal")
+    val livejournal: String? = null,
+    @SerializedName(value="instagram")
+    val instagram: String? = null,
+    @SerializedName(value="test")
+    val test: BaseBoolInt? = null,
+    @SerializedName(value="video_live")
+    val videoLive: VideoLiveInfo? = null,
+    @SerializedName(value="is_video_live_notifications_blocked")
+    val isVideoLiveNotificationsBlocked: BaseBoolInt? = null,
+    @SerializedName(value="is_service")
+    val isService: Boolean? = null,
+    @SerializedName(value="service_description")
+    val serviceDescription: String? = null,
+    @SerializedName(value="photo")
+    val photo: String? = null,
+    @SerializedName(value="photo_big")
+    val photoBig: String? = null,
+    @SerializedName(value="photo_400")
+    val photo400: String? = null,
+    @SerializedName(value="photo_max_size")
+    val photoMaxSize: PhotosPhoto? = null,
+    @SerializedName(value="language")
+    val language: String? = null,
+    @SerializedName(value="stories_archive_count")
+    val storiesArchiveCount: Int? = null,
+    @SerializedName(value="wall_default")
+    val wallDefault: WallDefault? = null,
+    @SerializedName(value="can_call")
+    val canCall: Boolean? = null,
+    @SerializedName(value="can_see_wishes")
+    val canSeeWishes: Boolean? = null,
+    @SerializedName(value="can_see_gifts")
+    val canSeeGifts: BaseBoolInt? = null,
+    @SerializedName(value="interests")
+    val interests: String? = null,
+    @SerializedName(value="books")
+    val books: String? = null,
+    @SerializedName(value="tv")
+    val tv: String? = null,
+    @SerializedName(value="quotes")
+    val quotes: String? = null,
+    @SerializedName(value="about")
+    val about: String? = null,
+    @SerializedName(value="games")
+    val games: String? = null,
+    @SerializedName(value="movies")
+    val movies: String? = null,
+    @SerializedName(value="activities")
+    val activities: String? = null,
+    @SerializedName(value="music")
+    val music: String? = null,
     @SerializedName(value="can_write_private_message")
     val canWritePrivateMessage: BaseBoolInt? = null,
     @SerializedName(value="can_send_friend_request")
@@ -237,6 +352,8 @@ data class UsersUserXtrCounters(
     val videoLiveLevel: Int? = null,
     @SerializedName(value="video_live_count")
     val videoLiveCount: Int? = null,
+    @SerializedName(value="clips_count")
+    val clipsCount: Int? = null,
     @SerializedName(value="blacklisted")
     val blacklisted: BaseBoolInt? = null,
     @SerializedName(value="blacklisted_by_me")
@@ -257,6 +374,8 @@ data class UsersUserXtrCounters(
     val university: Int? = null,
     @SerializedName(value="university_name")
     val universityName: String? = null,
+    @SerializedName(value="university_group_id")
+    val universityGroupId: Int? = null,
     @SerializedName(value="faculty")
     val faculty: Int? = null,
     @SerializedName(value="faculty_name")
@@ -287,6 +406,16 @@ data class UsersUserXtrCounters(
     val canSubscribePodcasts: Boolean? = null,
     @SerializedName(value="can_subscribe_posts")
     val canSubscribePosts: Boolean? = null,
+    @SerializedName(value="counters")
+    val counters: UsersUserCounters? = null,
+    @SerializedName(value="access_key")
+    val accessKey: String? = null,
+    @SerializedName(value="can_upload_doc")
+    val canUploadDoc: BaseBoolInt? = null,
+    @SerializedName(value="hash")
+    val hash: String? = null,
+    @SerializedName(value="has_email")
+    val hasEmail: Boolean? = null,
     @SerializedName(value="sex")
     val sex: BaseSex? = null,
     @SerializedName(value="screen_name")
@@ -325,4 +454,31 @@ data class UsersUserXtrCounters(
     val canAccessClosed: Boolean? = null,
     @SerializedName(value="is_closed")
     val isClosed: Boolean? = null
-)
+) {
+    enum class WallDefault(
+        val value: String
+    ) {
+        OWNER("owner"),
+
+        ALL("all");
+
+        class Serializer : JsonSerializer<WallDefault>, JsonDeserializer<WallDefault> {
+            override fun serialize(
+                src: WallDefault?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
+            override fun deserialize(
+                json: JsonElement?,
+                typeOfT: Type?,
+                context: JsonDeserializationContext?
+            ): WallDefault {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
+        }
+    }
+}
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/utils/dto/UtilsDomainResolvedType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/utils/dto/UtilsDomainResolvedType.kt
index 7843d1dda2..bbd1aae0a7 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/utils/dto/UtilsDomainResolvedType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/utils/dto/UtilsDomainResolvedType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.utils.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -44,14 +49,29 @@ enum class UtilsDomainResolvedType(
 
     PAGE("page"),
 
-    VK_APP("vk_app");
+    VK_APP("vk_app"),
+
+    COMMUNITY_APPLICATION("community_application"),
+
+    INTERNAL_VKUI("internal_vkui");
+
+    class Serializer : JsonSerializer<UtilsDomainResolvedType>,
+            JsonDeserializer<UtilsDomainResolvedType> {
+        override fun serialize(
+            src: UtilsDomainResolvedType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
 
-    class Serializer : JsonDeserializer<UtilsDomainResolvedType> {
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): UtilsDomainResolvedType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): UtilsDomainResolvedType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/utils/dto/UtilsGetLinkStatsInterval.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/utils/dto/UtilsGetLinkStatsInterval.kt
index 86f5fc9a78..37c3d3d647 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/utils/dto/UtilsGetLinkStatsInterval.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/utils/dto/UtilsGetLinkStatsInterval.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.utils.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -46,12 +51,23 @@ enum class UtilsGetLinkStatsInterval(
 
     WEEK("week");
 
-    class Serializer : JsonDeserializer<UtilsGetLinkStatsInterval> {
+    class Serializer : JsonSerializer<UtilsGetLinkStatsInterval>,
+            JsonDeserializer<UtilsGetLinkStatsInterval> {
+        override fun serialize(
+            src: UtilsGetLinkStatsInterval?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): UtilsGetLinkStatsInterval = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): UtilsGetLinkStatsInterval {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/utils/dto/UtilsGetLinkStatsSource.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/utils/dto/UtilsGetLinkStatsSource.kt
index 6fd642956c..df24988c2f 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/utils/dto/UtilsGetLinkStatsSource.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/utils/dto/UtilsGetLinkStatsSource.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.utils.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,23 @@ enum class UtilsGetLinkStatsSource(
 
     VK_LINK("vk_link");
 
-    class Serializer : JsonDeserializer<UtilsGetLinkStatsSource> {
+    class Serializer : JsonSerializer<UtilsGetLinkStatsSource>,
+            JsonDeserializer<UtilsGetLinkStatsSource> {
+        override fun serialize(
+            src: UtilsGetLinkStatsSource?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): UtilsGetLinkStatsSource = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): UtilsGetLinkStatsSource {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/utils/dto/UtilsLinkCheckedStatus.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/utils/dto/UtilsLinkCheckedStatus.kt
index 1369aa128f..d02af0e5b6 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/utils/dto/UtilsLinkCheckedStatus.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/utils/dto/UtilsLinkCheckedStatus.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.utils.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,23 @@ enum class UtilsLinkCheckedStatus(
 
     PROCESSING("processing");
 
-    class Serializer : JsonDeserializer<UtilsLinkCheckedStatus> {
+    class Serializer : JsonSerializer<UtilsLinkCheckedStatus>,
+            JsonDeserializer<UtilsLinkCheckedStatus> {
+        override fun serialize(
+            src: UtilsLinkCheckedStatus?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): UtilsLinkCheckedStatus = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): UtilsLinkCheckedStatus {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoAddAlbumPrivacy.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoAddAlbumPrivacy.kt
index 9bfeebb143..5b5a647f83 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoAddAlbumPrivacy.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoAddAlbumPrivacy.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.video.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -44,12 +49,23 @@ enum class VideoAddAlbumPrivacy(
 
     ONLY_ME("3");
 
-    class Serializer : JsonDeserializer<VideoAddAlbumPrivacy> {
+    class Serializer : JsonSerializer<VideoAddAlbumPrivacy>, JsonDeserializer<VideoAddAlbumPrivacy>
+            {
+        override fun serialize(
+            src: VideoAddAlbumPrivacy?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): VideoAddAlbumPrivacy = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): VideoAddAlbumPrivacy {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoEditAlbumPrivacy.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoEditAlbumPrivacy.kt
index c4750dd452..4ede843ad2 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoEditAlbumPrivacy.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoEditAlbumPrivacy.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.video.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -44,12 +49,23 @@ enum class VideoEditAlbumPrivacy(
 
     ONLY_ME("3");
 
-    class Serializer : JsonDeserializer<VideoEditAlbumPrivacy> {
+    class Serializer : JsonSerializer<VideoEditAlbumPrivacy>,
+            JsonDeserializer<VideoEditAlbumPrivacy> {
+        override fun serialize(
+            src: VideoEditAlbumPrivacy?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): VideoEditAlbumPrivacy = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): VideoEditAlbumPrivacy {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoGetCommentsSort.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoGetCommentsSort.kt
index 2beda9c617..3bf8472d1e 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoGetCommentsSort.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoGetCommentsSort.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.video.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,23 @@ enum class VideoGetCommentsSort(
 
     NEWEST_COMMENT_FIRST("desc");
 
-    class Serializer : JsonDeserializer<VideoGetCommentsSort> {
+    class Serializer : JsonSerializer<VideoGetCommentsSort>, JsonDeserializer<VideoGetCommentsSort>
+            {
+        override fun serialize(
+            src: VideoGetCommentsSort?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): VideoGetCommentsSort = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): VideoGetCommentsSort {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoLiveInfo.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoLiveInfo.kt
new file mode 100644
index 0000000000..f2e1cf5995
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoLiveInfo.kt
@@ -0,0 +1,42 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.video.dto
+
+import com.google.gson.annotations.SerializedName
+import com.vk.sdk.api.base.dto.BaseBoolInt
+
+/**
+ * @param enabled no description
+ * @param isNotificationsBlocked no description
+ */
+data class VideoLiveInfo(
+    @SerializedName(value="enabled")
+    val enabled: BaseBoolInt? = null,
+    @SerializedName(value="is_notifications_blocked")
+    val isNotificationsBlocked: BaseBoolInt? = null
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoReportCommentReason.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoReportCommentReason.kt
index 7e387792b9..1ccf31b427 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoReportCommentReason.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoReportCommentReason.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.video.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -50,12 +55,23 @@ enum class VideoReportCommentReason(
 
     INSULT_ABUSE(6);
 
-    class Serializer : JsonDeserializer<VideoReportCommentReason> {
+    class Serializer : JsonSerializer<VideoReportCommentReason>,
+            JsonDeserializer<VideoReportCommentReason> {
+        override fun serialize(
+            src: VideoReportCommentReason?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): VideoReportCommentReason = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): VideoReportCommentReason {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoReportReason.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoReportReason.kt
index f0136dd08a..a185f39f27 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoReportReason.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoReportReason.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.video.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -50,12 +55,22 @@ enum class VideoReportReason(
 
     INSULT_ABUSE(6);
 
-    class Serializer : JsonDeserializer<VideoReportReason> {
+    class Serializer : JsonSerializer<VideoReportReason>, JsonDeserializer<VideoReportReason> {
+        override fun serialize(
+            src: VideoReportReason?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): VideoReportReason = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): VideoReportReason {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoRestrictionButton.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoRestrictionButton.kt
index e5e9103976..887d6d167e 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoRestrictionButton.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoRestrictionButton.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.video.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import java.lang.reflect.Type
 import kotlin.String
@@ -49,12 +54,23 @@ data class VideoRestrictionButton(
     ) {
         PLAY("play");
 
-        class Serializer : JsonDeserializer<Action> {
+        class Serializer : JsonSerializer<Action>, JsonDeserializer<Action> {
+            override fun serialize(
+                src: Action?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: Type?,
                 context: JsonDeserializationContext?
-            ): Action = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Action {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoSearchFilters.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoSearchFilters.kt
index 52f64efc89..8c953da635 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoSearchFilters.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoSearchFilters.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.video.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -44,12 +49,22 @@ enum class VideoSearchFilters(
 
     LONG("long");
 
-    class Serializer : JsonDeserializer<VideoSearchFilters> {
+    class Serializer : JsonSerializer<VideoSearchFilters>, JsonDeserializer<VideoSearchFilters> {
+        override fun serialize(
+            src: VideoSearchFilters?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): VideoSearchFilters = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): VideoSearchFilters {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoSearchSort.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoSearchSort.kt
index 2bfa30ee56..7c7ed63ee2 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoSearchSort.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoSearchSort.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.video.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -42,12 +47,22 @@ enum class VideoSearchSort(
 
     DATE_ADDED(0);
 
-    class Serializer : JsonDeserializer<VideoSearchSort> {
+    class Serializer : JsonSerializer<VideoSearchSort>, JsonDeserializer<VideoSearchSort> {
+        override fun serialize(
+            src: VideoSearchSort?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): VideoSearchSort = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): VideoSearchSort {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoVideo.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoVideo.kt
index b480e8dc66..bce7141a0e 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoVideo.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoVideo.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.video.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import com.vk.sdk.api.base.dto.BaseBoolInt
 import com.vk.sdk.api.base.dto.BaseLikes
@@ -83,6 +88,9 @@ import kotlin.collections.List
  * @param liveStatus Live stream status
  * @param live 1 if the video is a live stream
  * @param upcoming 1 if the video is an upcoming stream
+ * @param liveStartTime Date in Unixtime when the live stream is scheduled to start by the author
+ * @param liveNotify Whether current user is subscribed to the upcoming live stream notification (if
+ * not subscribed to the author)
  * @param spectators Number of spectators of the stream
  * @param platform External platform
  * @param likes no description
@@ -171,6 +179,10 @@ data class VideoVideo(
     val live: BasePropertyExists? = null,
     @SerializedName(value="upcoming")
     val upcoming: BasePropertyExists? = null,
+    @SerializedName(value="live_start_time")
+    val liveStartTime: Int? = null,
+    @SerializedName(value="live_notify")
+    val liveNotify: BaseBoolInt? = null,
     @SerializedName(value="spectators")
     val spectators: Int? = null,
     @SerializedName(value="platform")
@@ -189,12 +201,23 @@ data class VideoVideo(
 
         MOVIE("movie");
 
-        class Serializer : JsonDeserializer<Type> {
+        class Serializer : JsonSerializer<Type>, JsonDeserializer<Type> {
+            override fun serialize(
+                src: Type?,
+                typeOfSrc: java.lang.reflect.Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: java.lang.reflect.Type?,
                 context: JsonDeserializationContext?
-            ): Type = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Type {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 
@@ -211,13 +234,23 @@ data class VideoVideo(
 
         UPCOMING("upcoming");
 
-        class Serializer : JsonDeserializer<LiveStatus> {
+        class Serializer : JsonSerializer<LiveStatus>, JsonDeserializer<LiveStatus> {
+            override fun serialize(
+                src: LiveStatus?,
+                typeOfSrc: java.lang.reflect.Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: java.lang.reflect.Type?,
                 context: JsonDeserializationContext?
-            ): LiveStatus = values().first { it.value.toString() ==
-                    json!!.asJsonPrimitive.toString() }
+            ): LiveStatus {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoVideoFull.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoVideoFull.kt
index 1bfae2f073..cc4d4e62f3 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoVideoFull.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/video/dto/VideoVideoFull.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.video.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import com.google.gson.annotations.SerializedName
 import com.vk.sdk.api.base.dto.BaseBoolInt
 import com.vk.sdk.api.base.dto.BaseLikes
@@ -85,6 +90,9 @@ import kotlin.collections.List
  * @param liveStatus Live stream status
  * @param live 1 if the video is a live stream
  * @param upcoming 1 if the video is an upcoming stream
+ * @param liveStartTime Date in Unixtime when the live stream is scheduled to start by the author
+ * @param liveNotify Whether current user is subscribed to the upcoming live stream notification (if
+ * not subscribed to the author)
  * @param spectators Number of spectators of the stream
  * @param platform External platform
  * @param likes no description
@@ -177,6 +185,10 @@ data class VideoVideoFull(
     val live: BasePropertyExists? = null,
     @SerializedName(value="upcoming")
     val upcoming: BasePropertyExists? = null,
+    @SerializedName(value="live_start_time")
+    val liveStartTime: Int? = null,
+    @SerializedName(value="live_notify")
+    val liveNotify: BaseBoolInt? = null,
     @SerializedName(value="spectators")
     val spectators: Int? = null,
     @SerializedName(value="platform")
@@ -195,12 +207,23 @@ data class VideoVideoFull(
 
         MOVIE("movie");
 
-        class Serializer : JsonDeserializer<Type> {
+        class Serializer : JsonSerializer<Type>, JsonDeserializer<Type> {
+            override fun serialize(
+                src: Type?,
+                typeOfSrc: java.lang.reflect.Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: java.lang.reflect.Type?,
                 context: JsonDeserializationContext?
-            ): Type = values().first { it.value.toString() == json!!.asJsonPrimitive.toString() }
+            ): Type {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 
@@ -217,13 +240,23 @@ data class VideoVideoFull(
 
         UPCOMING("upcoming");
 
-        class Serializer : JsonDeserializer<LiveStatus> {
+        class Serializer : JsonSerializer<LiveStatus>, JsonDeserializer<LiveStatus> {
+            override fun serialize(
+                src: LiveStatus?,
+                typeOfSrc: java.lang.reflect.Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
             override fun deserialize(
                 json: JsonElement?,
                 typeOfT: java.lang.reflect.Type?,
                 context: JsonDeserializationContext?
-            ): LiveStatus = values().first { it.value.toString() ==
-                    json!!.asJsonPrimitive.toString() }
+            ): LiveStatus {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
         }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallCommentAttachmentType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallCommentAttachmentType.kt
index f3aaef4d5c..923f3291d0 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallCommentAttachmentType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallCommentAttachmentType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.wall.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -56,12 +61,23 @@ enum class WallCommentAttachmentType(
 
     STICKER("sticker");
 
-    class Serializer : JsonDeserializer<WallCommentAttachmentType> {
+    class Serializer : JsonSerializer<WallCommentAttachmentType>,
+            JsonDeserializer<WallCommentAttachmentType> {
+        override fun serialize(
+            src: WallCommentAttachmentType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): WallCommentAttachmentType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): WallCommentAttachmentType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallGetByIdResponseDto.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallGetByIdResponseDto.kt
new file mode 100644
index 0000000000..dda64b1bf7
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallGetByIdResponseDto.kt
@@ -0,0 +1,39 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.wall.dto
+
+import com.google.gson.annotations.SerializedName
+import kotlin.collections.List
+
+/**
+ * @param items no description
+ */
+data class WallGetByIdResponseDto(
+    @SerializedName(value="items")
+    val items: List<WallWallpostFull>? = null
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallGetCommentsSort.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallGetCommentsSort.kt
index d98eba1825..dc25207797 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallGetCommentsSort.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallGetCommentsSort.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.wall.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -40,12 +45,22 @@ enum class WallGetCommentsSort(
 
     REVERSE_CHRONOLOGICAL("desc");
 
-    class Serializer : JsonDeserializer<WallGetCommentsSort> {
+    class Serializer : JsonSerializer<WallGetCommentsSort>, JsonDeserializer<WallGetCommentsSort> {
+        override fun serialize(
+            src: WallGetCommentsSort?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): WallGetCommentsSort = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): WallGetCommentsSort {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallGetFilter.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallGetFilter.kt
index b8b63ed964..1a5a23aa6c 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallGetFilter.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallGetFilter.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.wall.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -46,12 +51,22 @@ enum class WallGetFilter(
 
     SUGGESTS("suggests");
 
-    class Serializer : JsonDeserializer<WallGetFilter> {
+    class Serializer : JsonSerializer<WallGetFilter>, JsonDeserializer<WallGetFilter> {
+        override fun serialize(
+            src: WallGetFilter?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): WallGetFilter = values().first { it.value.toString() == json!!.asJsonPrimitive.toString()
-                }
+        ): WallGetFilter {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallPostSourceType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallPostSourceType.kt
index 91ce40c50f..fe2969df67 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallPostSourceType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallPostSourceType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.wall.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -46,12 +51,22 @@ enum class WallPostSourceType(
 
     SMS("sms");
 
-    class Serializer : JsonDeserializer<WallPostSourceType> {
+    class Serializer : JsonSerializer<WallPostSourceType>, JsonDeserializer<WallPostSourceType> {
+        override fun serialize(
+            src: WallPostSourceType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): WallPostSourceType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): WallPostSourceType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallPostType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallPostType.kt
index f5684fb6f8..66580b4eb2 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallPostType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallPostType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.wall.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -46,12 +51,22 @@ enum class WallPostType(
 
     SUGGEST("suggest");
 
-    class Serializer : JsonDeserializer<WallPostType> {
+    class Serializer : JsonSerializer<WallPostType>, JsonDeserializer<WallPostType> {
+        override fun serialize(
+            src: WallPostType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): WallPostType = values().first { it.value.toString() == json!!.asJsonPrimitive.toString()
-                }
+        ): WallPostType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallReportCommentReason.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallReportCommentReason.kt
index 6e2c136e1e..be1ea74986 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallReportCommentReason.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallReportCommentReason.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.wall.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -50,12 +55,23 @@ enum class WallReportCommentReason(
 
     INSULT_ABUSE(6);
 
-    class Serializer : JsonDeserializer<WallReportCommentReason> {
+    class Serializer : JsonSerializer<WallReportCommentReason>,
+            JsonDeserializer<WallReportCommentReason> {
+        override fun serialize(
+            src: WallReportCommentReason?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): WallReportCommentReason = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): WallReportCommentReason {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallReportPostReason.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallReportPostReason.kt
index 95ebfa2934..a061b35119 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallReportPostReason.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallReportPostReason.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.wall.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.Int
 
@@ -50,12 +55,23 @@ enum class WallReportPostReason(
 
     INSULT_ABUSE(6);
 
-    class Serializer : JsonDeserializer<WallReportPostReason> {
+    class Serializer : JsonSerializer<WallReportPostReason>, JsonDeserializer<WallReportPostReason>
+            {
+        override fun serialize(
+            src: WallReportPostReason?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): WallReportPostReason = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): WallReportPostReason {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallRepostResponseDto.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallRepostResponseDto.kt
index 1f1addbfc9..ab39de866f 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallRepostResponseDto.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallRepostResponseDto.kt
@@ -35,6 +35,8 @@ import kotlin.Int
  * @param postId Created post ID
  * @param repostsCount Reposts number
  * @param likesCount Reposts number
+ * @param wallRepostCount Reposts to wall number
+ * @param mailRepostCount Reposts to mail number
  */
 data class WallRepostResponseDto(
     @SerializedName(value="success")
@@ -44,5 +46,9 @@ data class WallRepostResponseDto(
     @SerializedName(value="reposts_count")
     val repostsCount: Int,
     @SerializedName(value="likes_count")
-    val likesCount: Int
+    val likesCount: Int,
+    @SerializedName(value="wall_repost_count")
+    val wallRepostCount: Int? = null,
+    @SerializedName(value="mail_repost_count")
+    val mailRepostCount: Int? = null
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallComment.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallComment.kt
index 6fb0797dd6..0568f0e0eb 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallComment.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallComment.kt
@@ -41,6 +41,7 @@ import kotlin.collections.List
  * @param id Comment ID
  * @param text Comment text
  * @param attachments no description
+ * @param donut no description
  * @param likes no description
  * @param realOffset Real position of the comment
  * @param replyToComment Replied comment ID
@@ -62,6 +63,8 @@ data class WallWallComment(
     val text: String,
     @SerializedName(value="attachments")
     val attachments: List<WallCommentAttachment>? = null,
+    @SerializedName(value="donut")
+    val donut: WallWallCommentDonut? = null,
     @SerializedName(value="likes")
     val likes: BaseLikesInfo? = null,
     @SerializedName(value="real_offset")
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallCommentDonut.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallCommentDonut.kt
new file mode 100644
index 0000000000..1cb2617097
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallCommentDonut.kt
@@ -0,0 +1,42 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.wall.dto
+
+import com.google.gson.annotations.SerializedName
+import kotlin.Boolean
+
+/**
+ * @param isDon Means commentator is donator
+ * @param placeholder no description
+ */
+data class WallWallCommentDonut(
+    @SerializedName(value="is_don")
+    val isDon: Boolean? = null,
+    @SerializedName(value="placeholder")
+    val placeholder: WallWallCommentDonutPlaceholder? = null
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallCommentDonutPlaceholder.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallCommentDonutPlaceholder.kt
new file mode 100644
index 0000000000..a3d5df577e
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallCommentDonutPlaceholder.kt
@@ -0,0 +1,39 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.wall.dto
+
+import com.google.gson.annotations.SerializedName
+import kotlin.String
+
+/**
+ * @param text no description
+ */
+data class WallWallCommentDonutPlaceholder(
+    @SerializedName(value="text")
+    val text: String
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostAttachmentType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostAttachmentType.kt
index 4ec25ef26f..3b2c6334d7 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostAttachmentType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostAttachmentType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.wall.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -70,12 +75,23 @@ enum class WallWallpostAttachmentType(
 
     MINI_APP("mini_app");
 
-    class Serializer : JsonDeserializer<WallWallpostAttachmentType> {
+    class Serializer : JsonSerializer<WallWallpostAttachmentType>,
+            JsonDeserializer<WallWallpostAttachmentType> {
+        override fun serialize(
+            src: WallWallpostAttachmentType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): WallWallpostAttachmentType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): WallWallpostAttachmentType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostCommentsDonut.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostCommentsDonut.kt
new file mode 100644
index 0000000000..e64d0a4155
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostCommentsDonut.kt
@@ -0,0 +1,38 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.wall.dto
+
+import com.google.gson.annotations.SerializedName
+
+/**
+ * @param placeholder no description
+ */
+data class WallWallpostCommentsDonut(
+    @SerializedName(value="placeholder")
+    val placeholder: WallWallpostCommentsDonutPlaceholder? = null
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostCommentsDonutPlaceholder.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostCommentsDonutPlaceholder.kt
new file mode 100644
index 0000000000..b9a6959e88
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostCommentsDonutPlaceholder.kt
@@ -0,0 +1,39 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.wall.dto
+
+import com.google.gson.annotations.SerializedName
+import kotlin.String
+
+/**
+ * @param text no description
+ */
+data class WallWallpostCommentsDonutPlaceholder(
+    @SerializedName(value="text")
+    val text: String
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostDonut.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostDonut.kt
new file mode 100644
index 0000000000..79a4bf59eb
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostDonut.kt
@@ -0,0 +1,89 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.wall.dto
+
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
+import com.google.gson.annotations.SerializedName
+import java.lang.reflect.Type
+import kotlin.Boolean
+import kotlin.Int
+import kotlin.String
+
+/**
+ * @param isDonut Post only for dons
+ * @param paidDuration Value of this field need to pass in wall.post/edit in donut_paid_duration
+ * @param placeholder If placeholder was respond, text and all attachments will be hidden
+ * @param canPublishFreeCopy Says whether group admin can post free copy of this donut post
+ * @param editMode Says what user can edit in post about donut properties
+ */
+data class WallWallpostDonut(
+    @SerializedName(value="is_donut")
+    val isDonut: Boolean,
+    @SerializedName(value="paid_duration")
+    val paidDuration: Int? = null,
+    @SerializedName(value="placeholder")
+    val placeholder: WallWallpostDonutPlaceholder? = null,
+    @SerializedName(value="can_publish_free_copy")
+    val canPublishFreeCopy: Boolean? = null,
+    @SerializedName(value="edit_mode")
+    val editMode: EditMode? = null
+) {
+    enum class EditMode(
+        val value: String
+    ) {
+        ALL("all"),
+
+        DURATION("duration");
+
+        class Serializer : JsonSerializer<EditMode>, JsonDeserializer<EditMode> {
+            override fun serialize(
+                src: EditMode?,
+                typeOfSrc: Type?,
+                context: JsonSerializationContext?
+            ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
+            override fun deserialize(
+                json: JsonElement?,
+                typeOfT: Type?,
+                context: JsonDeserializationContext?
+            ): EditMode {
+                val value = values().firstOrNull {
+                    it.value.toString() == json?.asJsonPrimitive?.asString
+                }
+                return value ?: throw JsonParseException(json.toString())
+            }
+        }
+    }
+}
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostDonutPlaceholder.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostDonutPlaceholder.kt
new file mode 100644
index 0000000000..dc79ef9552
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostDonutPlaceholder.kt
@@ -0,0 +1,39 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.wall.dto
+
+import com.google.gson.annotations.SerializedName
+import kotlin.String
+
+/**
+ * @param text no description
+ */
+data class WallWallpostDonutPlaceholder(
+    @SerializedName(value="text")
+    val text: String
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostFull.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostFull.kt
index f4d398d963..a1e0c49f0b 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostFull.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/dto/WallWallpostFull.kt
@@ -44,6 +44,7 @@ import kotlin.collections.List
  * @param createdBy Post creator ID (if post still can be edited)
  * @param canDelete Information whether current user can delete the post
  * @param canPin Information whether current user can pin the post
+ * @param donut no description
  * @param isPinned Information whether the post is pinned
  * @param comments no description
  * @param markedAsAds Information whether the post is marked as ads
@@ -79,6 +80,8 @@ data class WallWallpostFull(
     val canDelete: BaseBoolInt? = null,
     @SerializedName(value="can_pin")
     val canPin: BaseBoolInt? = null,
+    @SerializedName(value="donut")
+    val donut: WallWallpostDonut? = null,
     @SerializedName(value="is_pinned")
     val isPinned: Int? = null,
     @SerializedName(value="comments")
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/methods/WallEdit.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/methods/WallEdit.kt
index abacb3a4ec..7d2d58164b 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/methods/WallEdit.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/methods/WallEdit.kt
@@ -59,6 +59,7 @@ import org.json.JSONObject
  * @param placeId  minimum 0
  * @param markAsAds  
  * @param closeComments  
+ * @param donutPaidDuration  
  * @param posterBkgId  minimum 0
  * @param posterBkgOwnerId  
  * @param posterBkgAccessHash  
@@ -78,6 +79,7 @@ class WallEdit(
     private val placeId: Int? = null,
     private val markAsAds: Boolean? = null,
     private val closeComments: Boolean? = null,
+    private val donutPaidDuration: Int? = null,
     private val posterBkgId: Int? = null,
     private val posterBkgOwnerId: Int? = null,
     private val posterBkgAccessHash: String? = null,
@@ -121,6 +123,9 @@ class WallEdit(
         closeComments?.let { value ->
             addParam("close_comments", if (value) 1 else 0)
         }
+        donutPaidDuration?.let { value ->
+            addParam("donut_paid_duration", value)
+        }
         posterBkgId?.let { value ->
             addParam("poster_bkg_id", value)
         }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/methods/WallGetById.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/methods/WallGetById.kt
index 567381f920..43afee1cbb 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/methods/WallGetById.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/methods/WallGetById.kt
@@ -31,7 +31,7 @@ import com.vk.sdk.api.ApiRequestBase
 import com.vk.sdk.api.GsonHolder
 import com.vk.sdk.api.base.dto.BaseUserGroupFields
 import com.vk.sdk.api.wall.dto.WallWallpostFull
-import com.vk.sdk.api.wall.responses.WallGetByIdResponse
+import com.vk.sdk.api.wall.responses.WallGetByIdLegacyResponse
 import kotlin.Boolean
 import kotlin.Int
 import kotlin.String
@@ -68,5 +68,5 @@ class WallGetById(
     }
 
     override fun parse(r: JSONObject): List<WallWallpostFull> =
-            GsonHolder.gson.fromJson(r.toString(), WallGetByIdResponse::class.java).response
+            GsonHolder.gson.fromJson(r.toString(), WallGetByIdLegacyResponse::class.java).response
 }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/methods/WallPost.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/methods/WallPost.kt
index 7d823829b2..d47a93f273 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/methods/WallPost.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/methods/WallPost.kt
@@ -68,6 +68,7 @@ import org.json.JSONObject
  * @param guid  
  * @param markAsAds  default false
  * @param closeComments  
+ * @param donutPaidDuration  
  * @param muteNotifications  
  * @param copyright  
  */
@@ -87,6 +88,7 @@ class WallPost(
     private val guid: String? = null,
     private val markAsAds: Boolean? = null,
     private val closeComments: Boolean? = null,
+    private val donutPaidDuration: Int? = null,
     private val muteNotifications: Boolean? = null,
     private val copyright: String? = null
 ) : ApiRequestBase<WallPostResponseDto>(methodName = "wall.post") {
@@ -136,6 +138,9 @@ class WallPost(
         closeComments?.let { value ->
             addParam("close_comments", if (value) 1 else 0)
         }
+        donutPaidDuration?.let { value ->
+            addParam("donut_paid_duration", value)
+        }
         muteNotifications?.let { value ->
             addParam("mute_notifications", if (value) 1 else 0)
         }
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/responses/WallGetByIdLegacyResponse.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/responses/WallGetByIdLegacyResponse.kt
new file mode 100644
index 0000000000..6ceca0262e
--- /dev/null
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/responses/WallGetByIdLegacyResponse.kt
@@ -0,0 +1,40 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 vk.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+*/
+// *********************************************************************
+// THIS FILE IS AUTO GENERATED!
+// DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING.
+// *********************************************************************
+package com.vk.sdk.api.wall.responses
+
+import com.google.gson.annotations.SerializedName
+import com.vk.sdk.api.wall.dto.WallWallpostFull
+import kotlin.collections.List
+
+/**
+ * @param response no description
+ */
+data class WallGetByIdLegacyResponse(
+    @SerializedName(value="response")
+    val response: List<WallWallpostFull>
+)
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/responses/WallGetByIdResponse.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/responses/WallGetByIdResponse.kt
index 8291c13426..b7ed27b777 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/responses/WallGetByIdResponse.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/wall/responses/WallGetByIdResponse.kt
@@ -28,13 +28,12 @@
 package com.vk.sdk.api.wall.responses
 
 import com.google.gson.annotations.SerializedName
-import com.vk.sdk.api.wall.dto.WallWallpostFull
-import kotlin.collections.List
+import com.vk.sdk.api.wall.dto.WallGetByIdResponseDto
 
 /**
  * @param response no description
  */
 data class WallGetByIdResponse(
     @SerializedName(value="response")
-    val response: List<WallWallpostFull>
+    val response: WallGetByIdResponseDto
 )
diff --git a/vk-sdk-api/src/main/java/com/vk/sdk/api/widgets/dto/WidgetsCommentMediaType.kt b/vk-sdk-api/src/main/java/com/vk/sdk/api/widgets/dto/WidgetsCommentMediaType.kt
index 9480f81d95..8cb2ce39c0 100644
--- a/vk-sdk-api/src/main/java/com/vk/sdk/api/widgets/dto/WidgetsCommentMediaType.kt
+++ b/vk-sdk-api/src/main/java/com/vk/sdk/api/widgets/dto/WidgetsCommentMediaType.kt
@@ -30,6 +30,11 @@ package com.vk.sdk.api.widgets.dto
 import com.google.gson.JsonDeserializationContext
 import com.google.gson.JsonDeserializer
 import com.google.gson.JsonElement
+import com.google.gson.JsonNull
+import com.google.gson.JsonParseException
+import com.google.gson.JsonPrimitive
+import com.google.gson.JsonSerializationContext
+import com.google.gson.JsonSerializer
 import java.lang.reflect.Type
 import kotlin.String
 
@@ -42,12 +47,23 @@ enum class WidgetsCommentMediaType(
 
     VIDEO("video");
 
-    class Serializer : JsonDeserializer<WidgetsCommentMediaType> {
+    class Serializer : JsonSerializer<WidgetsCommentMediaType>,
+            JsonDeserializer<WidgetsCommentMediaType> {
+        override fun serialize(
+            src: WidgetsCommentMediaType?,
+            typeOfSrc: Type?,
+            context: JsonSerializationContext?
+        ): JsonElement = src?.let { JsonPrimitive(src.value) } ?: JsonNull.INSTANCE
+
         override fun deserialize(
             json: JsonElement?,
             typeOfT: Type?,
             context: JsonDeserializationContext?
-        ): WidgetsCommentMediaType = values().first { it.value.toString() ==
-                json!!.asJsonPrimitive.toString() }
+        ): WidgetsCommentMediaType {
+            val value = values().firstOrNull {
+                it.value.toString() == json?.asJsonPrimitive?.asString
+            }
+            return value ?: throw JsonParseException(json.toString())
+        }
     }
 }
diff --git a/vk-sdk-core/src/main/java/com/vk/api/sdk/VK.kt b/vk-sdk-core/src/main/java/com/vk/api/sdk/VK.kt
index c26bd93f7d..cae1593f88 100644
--- a/vk-sdk-core/src/main/java/com/vk/api/sdk/VK.kt
+++ b/vk-sdk-core/src/main/java/com/vk/api/sdk/VK.kt
@@ -53,7 +53,7 @@ object VK {
 
     private val tokenExpiredHandlers = ArrayList<VKTokenExpiredHandler>()
 
-    private var cachedAppId = 0
+    private var cachedResourceAppId = 0
 
     /**
      * This field contains an instance of VKUrlResolver that can be used to open a URL in VK client.
@@ -221,7 +221,7 @@ object VK {
      */
     @JvmStatic
     fun initialize(context: Context) {
-        val appId = getAppId(context)
+        val appId = getAppIdFromResources(context)
         setConfig(VKApiConfig(
                 context = context,
                 appId = appId,
@@ -233,34 +233,45 @@ object VK {
     }
 
     /**
-     * This method returns Application ID provided in the Manifest.
+     * This method returns Application ID of current [VKApiConfig]
+     * or value of com_vk_sdk_AppId resource if VK SDK wasn't initialized
      */
     @JvmStatic
     fun getAppId(context: Context): Int {
-        if (cachedAppId != 0) {
-            return cachedAppId
+        return try {
+            apiManager.config.appId
+        } catch (ignored: Exception) { // lateinit exception
+            // If somebody calls this method before initialization, return resource value
+            getAppIdFromResources(context)
         }
-
-        val resId = context.resources.getIdentifier(SDK_APP_ID, "integer", context.packageName)
-        cachedAppId = try {
-            context.resources.getInteger(resId)
-        } catch (e: Exception) {
-            0
-        }
-
-        if (cachedAppId == 0) {
-            throw RuntimeException("<integer name=\"com_vk_sdk_AppId\">your_app_id</integer> is not found in your resources.xml")
-        }
-
-        return cachedAppId
     }
 
     @JvmStatic
     fun clearAccessToken(context: Context) {
-        authManager.clearAccessToken()
+        if (::authManager.isInitialized) {
+            authManager.clearAccessToken()
+        }
     }
 
     private fun trackVisitor() {
         execute(VKBooleanRequest("stats.trackVisitor"))
     }
+
+    private fun getAppIdFromResources(context: Context): Int {
+        if (cachedResourceAppId != 0) {
+            return cachedResourceAppId
+        }
+
+        val resId = context.resources.getIdentifier(SDK_APP_ID, "integer", context.packageName)
+        val appId = try {
+            context.resources.getInteger(resId)
+        } catch (e: Exception) {
+            0
+        }
+        if (appId == 0) {
+            throw RuntimeException("<integer name=\"$SDK_APP_ID\">your_app_id</integer> is not found in your resources.xml")
+        }
+        cachedResourceAppId = appId
+        return appId
+    }
 }
\ No newline at end of file
diff --git a/vk-sdk-core/src/main/java/com/vk/api/sdk/VKApiConfig.kt b/vk-sdk-core/src/main/java/com/vk/api/sdk/VKApiConfig.kt
index 8542b31575..ed9bad5ed5 100644
--- a/vk-sdk-core/src/main/java/com/vk/api/sdk/VKApiConfig.kt
+++ b/vk-sdk-core/src/main/java/com/vk/api/sdk/VKApiConfig.kt
@@ -25,7 +25,6 @@
 package com.vk.api.sdk
 
 import android.content.Context
-import com.vk.api.sdk.chain.RateLimitReachedChainCall
 import com.vk.api.sdk.utils.log.DefaultApiLogger
 import com.vk.api.sdk.utils.log.Logger
 import java.util.concurrent.TimeUnit
@@ -38,7 +37,7 @@ import java.util.concurrent.TimeUnit
 data class VKApiConfig(
     val context: Context,
     val appId: Int = 0,
-    val validationHandler: VKApiValidationHandler?,
+    val validationHandler: VKApiValidationHandler? = null,
     val deviceId: Lazy<String> = lazy { "" },
     val version: String = DEFAULT_API_VERSION,
     val okHttpProvider: VKOkHttpProvider = VKOkHttpProvider.DefaultProvider(),
@@ -47,6 +46,7 @@ data class VKApiConfig(
     val logger: Logger = DefaultApiLogger(lazy { Logger.LogLevel.NONE }, "VKSdkApi"),
     val accessToken: Lazy<String> = lazy { "" },
     val secret: Lazy<String?> = lazy { null },
+    val clientSecret: String = "",
     val logFilterCredentials: Boolean = true,
     val debugCycleCalls: Lazy<Boolean> = lazy { false },
     val callsPerSecondLimit: Int = 3,
@@ -103,6 +103,10 @@ data class VKApiConfig(
             config = config.copy(accessToken = lazy { accessToken })
         }
 
+        fun setClientSecret(clientSecret: String) = apply {
+            config = config.copy(clientSecret = clientSecret)
+        }
+
         fun setOkHttpProvider(okHttpProvider: VKOkHttpProvider) = apply {
             config = config.copy(okHttpProvider = okHttpProvider)
         }
diff --git a/vk-sdk-core/src/main/java/com/vk/api/sdk/VKApiManager.kt b/vk-sdk-core/src/main/java/com/vk/api/sdk/VKApiManager.kt
index e43fecdc4b..a6e68bbf22 100644
--- a/vk-sdk-core/src/main/java/com/vk/api/sdk/VKApiManager.kt
+++ b/vk-sdk-core/src/main/java/com/vk/api/sdk/VKApiManager.kt
@@ -26,6 +26,7 @@ package com.vk.api.sdk
 
 import com.vk.api.sdk.chain.*
 import com.vk.api.sdk.exceptions.VKApiException
+import com.vk.api.sdk.internal.ApiCommand
 import com.vk.api.sdk.okhttp.OkHttpExecutor
 import com.vk.api.sdk.okhttp.OkHttpExecutorConfig
 import com.vk.api.sdk.okhttp.OkHttpMethodCall
@@ -84,6 +85,11 @@ open class VKApiManager(val config: VKApiConfig) {
         return executeWithExceptionAdjust(cc)
     }
 
+    @Throws(InterruptedException::class, IOException::class, VKApiException::class)
+    open fun <T> execute(cmd: ApiCommand<T>): T {
+        return cmd.execute(this)
+    }
+
     protected open fun <T> wrapCall(call: VKMethodCall, chainCall: ChainCall<T>): ChainCall<T> {
         var cc: ChainCall<T> = if (call.skipValidation) {
             chainCall
@@ -103,7 +109,7 @@ open class VKApiManager(val config: VKApiConfig) {
     @Throws(InterruptedException::class, IOException::class, VKApiException::class)
     @JvmOverloads
     fun <T> execute(call: VKHttpPostCall, progress: VKApiProgressListener? = null, parser: VKApiResponseParser<T>? = null): T {
-        var cc: ChainCall<T> = HttpPostChainCall(this, executor, call, progress, parser)
+        var cc: ChainCall<T> = createPostMethodChainCall(call, progress, parser)
         cc = wrapCall(call, cc)
         return executeWithExceptionAdjust(cc)
     }
@@ -124,4 +130,7 @@ open class VKApiManager(val config: VKApiConfig) {
 
     protected open fun <T> createMethodChainCall(call: VKMethodCall, parser: VKApiResponseParser<T>? = null): ChainCall<T> =
             MethodChainCall(this, executor, OkHttpMethodCall.Builder().from(call), config.deviceId.value, config.lang, parser)
+
+    protected open fun <T> createPostMethodChainCall(call: VKHttpPostCall, progress: VKApiProgressListener?, parser: VKApiResponseParser<T>?) =
+        HttpPostChainCall(this, executor, call, progress, parser)
 }
diff --git a/vk-sdk-core/src/main/java/com/vk/api/sdk/VKHttpPostCall.kt b/vk-sdk-core/src/main/java/com/vk/api/sdk/VKHttpPostCall.kt
index 9c1384cb16..af681399dd 100644
--- a/vk-sdk-core/src/main/java/com/vk/api/sdk/VKHttpPostCall.kt
+++ b/vk-sdk-core/src/main/java/com/vk/api/sdk/VKHttpPostCall.kt
@@ -42,14 +42,18 @@ open class VKHttpPostCall {
             private set
         var timeoutMs: Long = 0
             private set
+        var isAwaitNetwork: Boolean = false
+            private set
 
         open fun url(url: String) = apply { this.url = url }
         open fun multipart(multipart: Boolean) = apply { this.isMultipart = multipart }
         open fun args(key: String, value: String) = apply { parts[key] = HttpMultipartEntry.Text(value) }
         open fun args(key: String, fileUri: Uri) = apply { parts[key] = HttpMultipartEntry.File(fileUri) }
         open fun args(key: String, fileUri: Uri, fileName: String) = apply { parts[key] = HttpMultipartEntry.File(fileUri, fileName) }
+        open fun parts(parts: Map<String, HttpMultipartEntry>) = apply { this.parts.putAll(parts) }
         open fun retryCount(count: Int) = apply { this.retryCount = count }
         open fun timeout(timeout: Long) = apply { this.timeoutMs = timeout }
+        open fun awaitNetwork(isAwaitNetwork: Boolean) = apply { this.isAwaitNetwork = isAwaitNetwork }
 
         open fun build() = VKHttpPostCall(this)
     }
@@ -59,6 +63,7 @@ open class VKHttpPostCall {
     val parts: Map<String, HttpMultipartEntry>
     val retryCount: Int
     val timeoutMs: Long
+    val isAwaitNetwork: Boolean
 
     protected constructor(b: Builder) {
         if (b.url.isBlank()) throw IllegalArgumentException("Illegal url value: ${b.url}")
@@ -71,5 +76,6 @@ open class VKHttpPostCall {
         this.parts = b.parts
         this.retryCount = b.retryCount
         this.timeoutMs = b.timeoutMs
+        this.isAwaitNetwork = b.isAwaitNetwork
     }
 }
\ No newline at end of file
diff --git a/vk-sdk-core/src/main/java/com/vk/api/sdk/VKMethodCall.kt b/vk-sdk-core/src/main/java/com/vk/api/sdk/VKMethodCall.kt
index 758f30b66c..65fcca8674 100644
--- a/vk-sdk-core/src/main/java/com/vk/api/sdk/VKMethodCall.kt
+++ b/vk-sdk-core/src/main/java/com/vk/api/sdk/VKMethodCall.kt
@@ -39,6 +39,10 @@ open class VKMethodCall {
             private set
         var skipValidation: Boolean = false
             private set
+        var isAwaitNetwork: Boolean = false
+            private set
+        var ignoreExecuteErrors: IntArray? = null
+            private set
 
         /**
          * Api method name
@@ -52,6 +56,8 @@ open class VKMethodCall {
         open fun args(key: String, value: Any) = apply { this.args[key] = value.toString() }
         open fun retryCount(count: Int) = apply { this.retryCount = count }
         open fun skipValidation(skip: Boolean) = apply { this.skipValidation = skip }
+        open fun awaitNetwork(isAwaitNetwork: Boolean) = apply { this.isAwaitNetwork = isAwaitNetwork }
+        open fun ignoreExecuteErrors(ignoredErrors: IntArray?) = apply { this.ignoreExecuteErrors = ignoredErrors }
 
         open fun build() = VKMethodCall(this)
     }
@@ -61,6 +67,8 @@ open class VKMethodCall {
     val args: Map<String,String>
     val retryCount: Int
     val skipValidation: Boolean
+    val isAwaitNetwork: Boolean
+    val ignoreExecuteErrors: IntArray?
 
     protected constructor(b: Builder) {
         if (b.method.isBlank()) throw IllegalArgumentException("method is null or empty")
@@ -70,6 +78,8 @@ open class VKMethodCall {
         this.args = b.args
         this.retryCount = b.retryCount
         this.skipValidation = b.skipValidation
+        this.isAwaitNetwork = b.isAwaitNetwork
+        this.ignoreExecuteErrors = b.ignoreExecuteErrors
     }
 
     override fun equals(other: Any?): Boolean {
diff --git a/vk-sdk-core/src/main/java/com/vk/api/sdk/chain/HttpPostChainCall.kt b/vk-sdk-core/src/main/java/com/vk/api/sdk/chain/HttpPostChainCall.kt
index 924acec4be..2693e0e4bf 100644
--- a/vk-sdk-core/src/main/java/com/vk/api/sdk/chain/HttpPostChainCall.kt
+++ b/vk-sdk-core/src/main/java/com/vk/api/sdk/chain/HttpPostChainCall.kt
@@ -34,7 +34,7 @@ import com.vk.api.sdk.okhttp.OkHttpPostCall
 import com.vk.api.sdk.utils.hasSimpleError
 import com.vk.api.sdk.utils.toSimpleError
 
-class HttpPostChainCall<T>(manager: VKApiManager,
+open class HttpPostChainCall<T>(manager: VKApiManager,
                            val okHttpExecutor: OkHttpExecutor,
                            val call: VKHttpPostCall,
                            val progressListener: VKApiProgressListener?,
@@ -42,11 +42,14 @@ class HttpPostChainCall<T>(manager: VKApiManager,
     @Throws(Exception::class)
     override fun call(args: ChainArgs): T? {
         val response = okHttpExecutor.execute(OkHttpPostCall(call), progressListener)
+        return handleResponse(response)
+    }
+
+    protected fun handleResponse(response: String?): T? {
         return when {
             response == null -> throw VKApiException("Response returned null instead of valid string response")
             response.hasSimpleError() -> throw response.toSimpleError("post")
             else -> parser?.parse(response)
         }
     }
-
 }
\ No newline at end of file
diff --git a/vk-sdk-core/src/main/java/com/vk/api/sdk/internal/QueryStringGenerator.kt b/vk-sdk-core/src/main/java/com/vk/api/sdk/internal/QueryStringGenerator.kt
index a12dfb5cc5..807b81c9b0 100644
--- a/vk-sdk-core/src/main/java/com/vk/api/sdk/internal/QueryStringGenerator.kt
+++ b/vk-sdk-core/src/main/java/com/vk/api/sdk/internal/QueryStringGenerator.kt
@@ -25,7 +25,6 @@
 package com.vk.api.sdk.internal
 
 import com.vk.api.sdk.okhttp.OkHttpMethodCall
-import com.vk.api.sdk.utils.getValue
 import com.vk.api.sdk.utils.threadLocal
 import java.io.UnsupportedEncodingException
 import java.net.URLEncoder
diff --git a/vk-sdk-core/src/main/java/com/vk/api/sdk/okhttp/LoggingInterceptor.kt b/vk-sdk-core/src/main/java/com/vk/api/sdk/okhttp/LoggingInterceptor.kt
index 59099a5476..87e6bf2942 100644
--- a/vk-sdk-core/src/main/java/com/vk/api/sdk/okhttp/LoggingInterceptor.kt
+++ b/vk-sdk-core/src/main/java/com/vk/api/sdk/okhttp/LoggingInterceptor.kt
@@ -24,7 +24,6 @@
 package com.vk.api.sdk.okhttp
 
 import androidx.collection.ArrayMap
-import com.vk.api.sdk.utils.getValue
 import com.vk.api.sdk.utils.log.Logger
 import com.vk.api.sdk.utils.threadLocal
 import okhttp3.Interceptor
diff --git a/vk-sdk-core/src/main/java/com/vk/api/sdk/okhttp/OkHttpExecutor.kt b/vk-sdk-core/src/main/java/com/vk/api/sdk/okhttp/OkHttpExecutor.kt
index 82b20b88b7..d45479ae4e 100644
--- a/vk-sdk-core/src/main/java/com/vk/api/sdk/okhttp/OkHttpExecutor.kt
+++ b/vk-sdk-core/src/main/java/com/vk/api/sdk/okhttp/OkHttpExecutor.kt
@@ -121,15 +121,18 @@ open class OkHttpExecutor(protected val config: OkHttpExecutorConfig) {
 
         val timeout = if (call.timeoutMs > 0) call.timeoutMs else config.postRequestsTimeout
 
-        val request = Request.Builder()
-                .post(requestBody)
-                .url(call.url)
-                .cacheControl(CacheControl.FORCE_NETWORK)
-                .build()
+        val request = makePostCallRequestBuilder(call, requestBody).build()
 
         return readResponse(executeRequest(request, timeout))
     }
 
+    protected open fun makePostCallRequestBuilder(call: OkHttpPostCall, requestBody: RequestBody): Request.Builder {
+        return Request.Builder()
+            .post(requestBody)
+            .url(call.url)
+            .cacheControl(CacheControl.FORCE_NETWORK)
+    }
+
     @Throws(VKApiException::class)
     protected fun validateQueryString(call: OkHttpMethodCall, paramsString: String): String {
         if (call.method.startsWith("execute.")) {
diff --git a/vk-sdk-core/src/main/java/com/vk/api/sdk/okhttp/OkHttpPostCall.kt b/vk-sdk-core/src/main/java/com/vk/api/sdk/okhttp/OkHttpPostCall.kt
index 652b774af1..34b1cafad9 100644
--- a/vk-sdk-core/src/main/java/com/vk/api/sdk/okhttp/OkHttpPostCall.kt
+++ b/vk-sdk-core/src/main/java/com/vk/api/sdk/okhttp/OkHttpPostCall.kt
@@ -26,8 +26,8 @@ package com.vk.api.sdk.okhttp
 import com.vk.api.sdk.VKHttpPostCall
 import com.vk.api.sdk.internal.HttpMultipartEntry
 
-class OkHttpPostCall {
-    class Builder {
+open class OkHttpPostCall {
+    open class Builder {
         var url: String = ""
             private set
         var isMultipart: Boolean = true
@@ -41,7 +41,7 @@ class OkHttpPostCall {
         fun parts(parts: Map<String, HttpMultipartEntry>) = apply { this.parts.clear(); this.parts.putAll(parts) }
         fun timeout(timeout: Long) = apply { this.timeoutMs = timeout }
 
-        fun build() = OkHttpPostCall(this)
+        open fun build() = OkHttpPostCall(this)
     }
 
     val url: String
@@ -49,9 +49,9 @@ class OkHttpPostCall {
     val parts: Map<String, HttpMultipartEntry>
     val timeoutMs: Long
 
-    private constructor(b: Builder) {
+    protected constructor(b: Builder) {
         if (b.url.isBlank()) throw IllegalArgumentException("Illegal url value: ${b.url}")
-        if (b.timeoutMs <= 0) throw IllegalArgumentException("Illegal timeout value: ${b.timeoutMs}")
+        if (b.timeoutMs < 0) throw IllegalArgumentException("Illegal timeout value: ${b.timeoutMs}")
         if (!b.isMultipart && b.parts.any { it.value !is HttpMultipartEntry.Text }) {
             throw IllegalStateException("Non multipart calls should consist of text arguments only")
         }
diff --git a/vk-sdk-core/src/main/java/com/vk/api/sdk/utils/ThreadLocalDelegate.kt b/vk-sdk-core/src/main/java/com/vk/api/sdk/utils/ThreadLocalDelegate.kt
index 2ec6a63a8d..376d48b3b2 100644
--- a/vk-sdk-core/src/main/java/com/vk/api/sdk/utils/ThreadLocalDelegate.kt
+++ b/vk-sdk-core/src/main/java/com/vk/api/sdk/utils/ThreadLocalDelegate.kt
@@ -27,10 +27,12 @@ package com.vk.api.sdk.utils
 import kotlin.reflect.KProperty
 
 /**
- * Provides operator function for declaring ThreadLocal var throght kotlin delegate syntax.
+ * Provides operator function for declaring ThreadLocal var though kotlin delegate syntax.
  */
 internal interface ThreadLocalDelegate<T> {
     fun get(): T
+
+    operator fun getValue(any: Any?, property: KProperty<*>): T = this.get()
 }
 
 internal fun <T> threadLocal(factory: () -> T): ThreadLocalDelegate<T> {
@@ -48,5 +50,3 @@ internal class ThreadLocalDelegateImpl<T>(val factory: () -> T) : ThreadLocalDel
         return value.get()!!
     }
 }
-
-internal operator fun <T> ThreadLocalDelegate<T>.getValue(any: Any?, property: KProperty<*>): T = this.get()