async def adelete(self, ref_doc_id: str, **delete_kwargs: Any) -> None:
        """
        Delete nodes using with ref_doc_id.
        NOTE: this is not implemented for all vector stores. If not implemented,
        it will just call delete synchronously.
        """
        self.delete(ref_doc_id, **delete_kwargs)

        Delete nodes using with ref_doc_id.
        NOTE: this is not implemented for all vector stores. If not implemented,
        it will just call delete synchronously.
        
llama-index-core/llama_index/core/vector_stores/types.py