Implement LindiReferenceFileSystemStore.__contains__
#75
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MutableMapping
implements__contains__
by calling__getitem__
and checking for None. ZarrBaseStore
has this line:https://github.com/zarr-developers/zarr-python/blob/b1f4c509abaee1cb8dec18e3a973e1199226011a/src/zarr/v2/_storage/store.py#L142
which does a both
__contains__
check and__getitem__
check. That results in two remote requests per__getitem__
call inLindiReferenceFileSystemStore
.This PR removes the remote request for
__contains__
.