code: def __repr__(self) -> str:
      return f"{self.__class__.__name__}()"
  
imports: from typing import Optional, Union, Dict
  import os
  import shutil
  import os.path
  import torch
  import numpy
  from ogb.utils.url import decide_download, download_url, extract_zip, makedirs
  from ogb.lsc.utils import split_test
label_desc: Use image node_id 17 for calling the MAG240MDataset obj's underlying member method code with example usage: obj.__repr__() and returns: self, str