def vector_query(
        self, query: VectorStoreQuery, **kwargs: Any
    ) -> Tuple[List[LabelledNode], List[float]]:
        """Query the graph store with a vector store query."""
        raise NotImplementedError(
            "Vector query not implemented for SimplePropertyGraphStore."
        )
Query the graph store with a vector store query.
llama-index-core/llama_index/core/graph_stores/simple_labelled.py