def METHOD_NAME(folder_posegraph):
    pose_graph_paths = get_file_list(folder_posegraph, ".json")
    for pose_graph_path in pose_graph_paths:
        pose_graph = o3d.io.read_pose_graph(pose_graph_path)
        n_nodes = len(pose_graph.nodes)
        n_edges = len(pose_graph.edges)
        print(
            "Fragment o3d.pipelines.registration.PoseGraph %s has %d nodes and %d edges"
            % (pose_graph_path, n_nodes, n_edges))