def refresh_schema(self) -> None:
        """
        Refreshes the Memgraph graph schema information.
        """
        node_properties = self.query(node_properties_query)
        relationships_properties = self.query(rel_properties_query)
        relationships = self.query(rel_query)

        self.schema = f"""
        Node properties are the following:
        {node_properties}
        Relationship properties are the following:
        {relationships_properties}
        The relationships are the following:
        {relationships}
        """

        Refreshes the Memgraph graph schema information.
        
llama-index-integrations/graph_stores/llama-index-graph-stores-memgraph/llama_index/graph_stores/memgraph/kg_base.py