def __init__(self, sumo_map_path):
        """
        Init the map manager. It can be extended to manage more maps
        """
        super(SumoMapManager, self).__init__()
        self.current_map = None
        self.graph = RoadLaneJunctionGraph(sumo_map_path)
        self.map_feature = extract_map_features(self.graph)

        Init the map manager. It can be extended to manage more maps
        
metadrive/manager/sumo_map_manager.py