code: def default_vocab():
      return os.path.join(
          os.path.dirname(os.path.abspath(__file__)), "vocab.txt"
      )
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import collections
  import os
  import re
  import unicodedata
  from functools import lru_cache
  import six
label_desc: Use image node_id 1 for calling a global function with example usage: default_vocab() and returns: os