code: def __getitem__(self, item):
      return self.__root__[item]
  
imports: import json
  import shutil
  from pathlib import Path
  from typing import Dict, Optional, Tuple
  from gluonts.pydantic import BaseModel
  from .dyn import install_and_restart
  from .params import decode_sagemaker_parameters
  from .nested_params import decode_nested_parameters
label_desc: Use image node_id 1 for calling the InpuDataConfig obj's underlying member method code with example usage: obj.__getitem__(item) and returns: self