code: def __init__(self, path: str, name: str, url: str):
      self.__name: str = name
      self.__url: str = url
      super(_MATLABMatrix, self).__init__(path)
      self.__data = torch.load(list(self._processed_file_paths)[0])
  
imports: import itertools
  import os
  import scipy.io
  import torch
  import typing
  from autogl.data import Data, download_url, InMemoryStaticGraphSet
  from autogl.data.graph import GeneralStaticGraphGenerator
  from ._dataset_registry import DatasetUniversalRegistry
  from ._data_source import OnlineDataSource
  from ..None import backend
label_desc: Use image node_id 7 to create a new _MATLABMatrix object from inherited base classes: OnlineDataSource with example: obj = _MATLABMatrix(path, name, url)