code: def __getattr__(self, name):
      if (
          "_dir_representation" in self.__dict__
          and name in self._dir_representation
      ):
          return getattr(self, name)
      elif "vocab" in self.__dict__ and hasattr(self.vocab, name):
          return getattr(self.vocab, name)
      else:
          type_vocab = "Vocab"
          if "vocab" in self.__dict__:
              type_vocab = type(self.vocab)
  
          raise AttributeError(
              f"{type_vocab} vocab type has no attribute {name}."
          )
  
imports: import logging
  import os
  from collections import defaultdict
  import numpy
  import torch
  from mmf.utils.configuration import get_mmf_cache_dir
  from mmf.utils.distributed import is_main, synchronize
  from mmf.utils.file_io import PathManager
  from mmf.utils.general import get_absolute_path
  from torchtext import vocab
label_desc: Use image node_id 3 for calling the Vocab obj's underlying member method code with example usage: obj.__getattr__(name) and returns: getattr, getattr