code: def _class_ids_path(self) -> str:
      return f"class-ids-{self._split.value.upper()}.npy"
  
imports: import csv
  from enum import Enum
  import logging
  import os
  from typing import Callable, List, Optional, Tuple, Union
  import numpy
  from .extended import ExtendedVisionDataset
label_desc: Use image node_id 7 for calling the ImageNet obj's underlying member method code with example usage: obj._class_ids_path() and returns: str, self, str