Can't Read New Diagrams.net XML about n2g HOT 2 CLOSED

    def from_xml(self, text_data):
        """
        Method to load graph from .drawio XML text produced by DrawIO

        **Args**

            * text_data - text data to load
        """
        self.drawing = ET.fromstring(text_data)
        # extract diagrams, nodes, edges IDs
        for diagram_elem in self.drawing.findall("./diagram"):
            diagram_id=diagram_elem.attrib["id"]
            self.nodes_ids.setdefault(diagram_id, [])
            self.edges_ids.setdefault(diagram_id, [])

            # iterate over mxcells to extract nodes and edges
            for object in diagram_elem.findall("./mxGraphModel/root/UserObject"):
                self._extract_node_and_edge(object, diagram_id)

            # iterate over mxcells to extract nodes and edges
            for object in diagram_elem.findall("./mxGraphModel/root/object"):
                self._extract_node_and_edge(object, diagram_id)

        self.go_to_diagram(diagram_index=0)

    def _extract_node_and_edge(self, xmlobj, diagram_id):
        object_id = xmlobj.attrib["id"]
        mxCell = xmlobj.find("./mxCell")
        # check if this is the edge
        if "source" in mxCell.attrib and "target" in mxCell.attrib:
            self.edges_ids[diagram_id].append(object_id)
        else:
            self.nodes_ids[diagram_id].append(object_id)