Get dataset version by as_of or exact tag.
Ues this to resolve the nearest version to a given timestamp or for a given tag.
read_dataset_version(
self,
*,
dataset_id: Optional[ID_TYPE] = None,
dataset_name: Optional[str] = None,
as_of: Optional[datetime.datetime] = None,
tag: Optional[str] = None
) -> ls_schemas.DatasetVersion