"rel_props": {el["type"]: el["properties"] for el in rel_properties},
            "relationships": relationships,
        }
        # Format node properties
        formatted_node_props = []
        for el in node_properties:
            props_str = ", ".join(
                [f"{prop['property']}: {prop['type']}" for prop in el["properties"]]
            )
            formatted_node_props.append(f"{el['labels']} {{{props_str}}}")
        # Format relationship properties
        formatted_rel_props = []
        for el in rel_properties:
            props_str = ", ".join(
                [f"{prop['property']}: {prop['type']}" for prop in el["properties"]]
            )
            formatted_rel_props.append(f"{el['type']} {{{props_str}}}")
        # Format relationships
        formatted_rels = [
            f"(:{el['start']})-[:{el['type']}]->(:{el['end']})" for el in relationships
        ]
        self.schema = "\n".join(
            [
                "Node properties are the following:",
                ",".join(formatted_node_props),
                "Relationship properties are the following:",
                ",".join(formatted_rel_props),
                "The relationships are the following:",
                ",".join(formatted_rels),
            ]
        )
[docs]    def add_graph_documents(
        self, graph_documents: List[GraphDocument], include_source: bool = False
    ) -> None:
        """
        Take GraphDocument as input as uses it to construct a graph.
        """
        for document in graph_documents:
            include_docs_query = (
                "CREATE (d:Document) "
                "SET d.text = $document.page_content "