Return VectorStore initialized from documents and embeddings. Postgres Connection string is required Either pass it as a parameter or set the PG_CONNECTION_STRING environment variable.
from_documents(
cls: Type[AnalyticDB],
documents: List[Document],
embedding: Embeddings,
embedding_dimension: int = _LANGCHAIN_DEFAULT_EMBEDDING_DIM,
collection_name: str = _LANGCHAIN_DEFAULT_COLLECTION_NAME,
ids: Optional[List[str]] = None,
pre_delete_collection: bool = False,
engine_args: Optional[dict] = None,
**kwargs: Any = {}
) -> AnalyticDB