code: def _load(self, hash_key):
      if self.in_memory:
          return _data_mem_cache.get(hash_key)
  
      info = _data_file_cache.get_session(session_id=hash_key)
      if info and os.path.isfile(info.image):
          return torch.load(info.image)
      return None
  
imports: import copy
  import logging
  import os
  import pathlib
  from typing import Hashable, Sequence, Tuple, Union
  import torch
  from expiring_dict import ExpiringDict
  from monai.config import KeysCollection
  from monai.data import MetaTensor
  from monai.transforms import Transform
  from monai.utils import ensure_tuple
  from monailabel.utils.others.generic import md5_digest
  from monailabel.utils.sessions import Sessions
label_desc: Use image node_id 5 for calling the CacheTransformDatad obj's underlying member method code with example usage: obj._load(hash_key) and returns: None, _data_mem_cache, torch