code: def __getattr__(self, name):
      if (
          "_dir_representation" in self.__dict__
          and name in self._dir_representation
      ):
          return getattr(self, name)
      elif "dataset" in self.__dict__ and hasattr(self.dataset, name):
          return getattr(self.dataset, name)
      else:
          raise AttributeError(name)
  
imports: from torch.utils.data.dataset import Subset
label_desc: Use image node_id 2 for calling the MMFSubset obj's underlying member method code with example usage: obj.__getattr__(name) and returns: getattr, getattr