[1/n][dagster-fivetran] Scaffold FivetranWorkspace for rework (#25750)

## Summary & Motivation

Builds out a very barebones resource and client classes for the new
version of the Fivetran integration.

## How I Tested These Changes

Tests will be added in subsequent PRs.

python_modules/libraries/dagster-fivetran/dagster_fivetran/__init__.py

@@ -11,6 +11,7 @@
 )
 from dagster_fivetran.resources import (
     FivetranResource as FivetranResource,
+    FivetranWorkspace as FivetranWorkspace,
     fivetran_resource as fivetran_resource,
 )
 from dagster_fivetran.types import FivetranOutput as FivetranOutput

python_modules/libraries/dagster-fivetran/dagster_fivetran/resources.py

@@ -3,6 +3,7 @@
 import logging
 import os
 import time
+from enum import Enum
 from typing import Any, Mapping, Optional, Sequence, Tuple
 from urllib.parse import urljoin
 
@@ -16,11 +17,14 @@
     get_dagster_logger,
     resource,
 )
+from dagster._annotations import experimental
 from dagster._config.pythonic_config import ConfigurableResource
 from dagster._core.definitions.resource_definition import dagster_maintained_resource
+from dagster._record import record
+from dagster._serdes.serdes import whitelist_for_serdes
 from dagster._utils.cached_method import cached_method
 from dagster._vendored.dateutil import parser
-from pydantic import Field
+from pydantic import Field, PrivateAttr
 from requests.auth import HTTPBasicAuth
 from requests.exceptions import RequestException
 
@@ -436,3 +440,142 @@ def my_fivetran_job():
 
     """
     return FivetranResource.from_resource_context(context)
+
+
+# ------------------
+# Reworked resources
+# ------------------
+class FivetranContentType(Enum):
+    """Enum representing each object in Fivetran's ontology."""
+
+    CONNECTOR = "connector"
+    DESTINATION = "destination"
+
+
+@whitelist_for_serdes
+@record
+class FivetranContentData:
+    """A record representing a piece of content in a Fivetran workspace.
+    Includes the object's type and data as returned from the API.
+    """
+
+    content_type: FivetranContentType
+    properties: Mapping[str, Any]
+
+
+@record
+class FivetranWorkspaceData:
+    """A record representing all content in a Fivetran workspace.
+    Provided as context for the translator so that it can resolve dependencies between content.
+    """
+
+    connectors_by_id: Mapping[str, FivetranContentData]
+    destinations_by_id: Mapping[str, FivetranContentData]
+
+    @classmethod
+    def from_content_data(
+        cls, content_data: Sequence[FivetranContentData]
+    ) -> "FivetranWorkspaceData":
+        raise NotImplementedError()
+
+
+@experimental
+class FivetranClient:
+    """This class exposes methods on top of the Fivetran REST API."""
+
+    def __init__(
+        self,
+        api_key: str,
+        api_secret: str,
+        request_max_retries: int,
+        request_retry_delay: float,
+    ):
+        self.api_key = api_key
+        self.api_secret = api_secret
+        self.request_max_retries = request_max_retries
+        self.request_retry_delay = request_retry_delay
+
+    @property
+    def _auth(self) -> HTTPBasicAuth:
+        raise NotImplementedError()
+
+    @property
+    @cached_method
+    def _log(self) -> logging.Logger:
+        return get_dagster_logger()
+
+    @property
+    def api_base_url(self) -> str:
+        raise NotImplementedError()
+
+    @property
+    def api_connector_url(self) -> str:
+        raise NotImplementedError()
+
+    def make_connector_request(
+        self, method: str, endpoint: str, data: Optional[str] = None
+    ) -> Mapping[str, Any]:
+        raise NotImplementedError()
+
+    def make_request(
+        self, method: str, endpoint: str, data: Optional[str] = None
+    ) -> Mapping[str, Any]:
+        raise NotImplementedError()
+
+    def get_connector_details(self, connector_id: str) -> Mapping[str, Any]:
+        """Fetches details about a given connector from the Fivetran API."""
+        raise NotImplementedError()
+
+    def get_connectors_for_group(self, group_id: str) -> Mapping[str, Any]:
+        """Fetches all connectors for a given group from the Fivetran API."""
+        raise NotImplementedError()
+
+    def get_destination_details(self, destination_id: str) -> Mapping[str, Any]:
+        """Fetches details about a given destination from the Fivetran API."""
+        raise NotImplementedError()
+
+    def get_groups(self) -> Mapping[str, Any]:
+        """Fetches all groups from the Fivetran API."""
+        raise NotImplementedError()
+
+
+@experimental
+class FivetranWorkspace(ConfigurableResource):
+    """This class represents a Fivetran workspace and provides utilities
+    to interact with Fivetran APIs.
+    """
+
+    api_key: str = Field(description="The Fivetran API key to use for this resource.")
+    api_secret: str = Field(description="The Fivetran API secret to use for this resource.")
+    request_max_retries: int = Field(
+        default=3,
+        description=(
+            "The maximum number of times requests to the Fivetran API should be retried "
+            "before failing."
+        ),
+    )
+    request_retry_delay: float = Field(
+        default=0.25,
+        description="Time (in seconds) to wait between each request retry.",
+    )
+
+    _client: FivetranClient = PrivateAttr(default=None)
+
+    def get_client(self) -> FivetranClient:
+        return FivetranClient(
+            api_key=self.api_key,
+            api_secret=self.api_secret,
+            request_max_retries=self.request_max_retries,
+            request_retry_delay=self.request_retry_delay,
+        )
+
+    def fetch_fivetran_workspace_data(
+        self,
+    ) -> FivetranWorkspaceData:
+        """Retrieves all Fivetran content from the workspace and returns it as a FivetranWorkspaceData object.
+        Future work will cache this data to avoid repeated calls to the Fivetran API.
+
+        Returns:
+            FivetranWorkspaceData: A snapshot of the Fivetran workspace's content.
+        """
+        raise NotImplementedError()