def close(self) -> None:
        """
        Explicitly close the Neo4j driver connection.

        Delegates connection management to the Neo4j driver.
        """
        if hasattr(self, "_driver"):
            self._driver.close()
            # Remove the driver attribute to indicate closure
            delattr(self, "_driver")

        Explicitly close the Neo4j driver connection.

        Delegates connection management to the Neo4j driver.
        
llama-index-integrations/graph_stores/llama-index-graph-stores-neo4j/llama_index/graph_stores/neo4j/neo4j_property_graph.py