code: def __iter__(self):
      return self.get_fixlen_iter()
  
imports: import glob
  import os
  import pickle
  import re
  from collections import Counter, OrderedDict
  from typing import List, Optional, Tuple
  import numpy
  from ....tokenization_utils import PreTrainedTokenizer
  from ....utils import cached_file, is_sacremoses_available, is_torch_available, logging, requires_backends, strtobool, torch_only_method
label_desc: Use image node_id 5 for calling the LMOrderedIterator obj's underlying member method code with example usage: obj.__iter__() and returns: self