def structured_query(
        self, query: str, param_map: Optional[Dict[str, Any]] = None
    ) -> Any:
        """Query the graph store with statement and parameters."""
        raise NotImplementedError("TiDB does not support cypher queries.")
Query the graph store with statement and parameters.
llama-index-integrations/graph_stores/llama-index-graph-stores-tidb/llama_index/graph_stores/tidb/property_graph.py