code: def convert_tokens_to_ids(vocab, tokens):
      return convert_by_vocab(vocab, tokens)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import collections
  import re
  import unicodedata
  import six
label_desc: Use image node_id 6 for calling a global function with example usage: convert_tokens_to_ids(vocab, tokens) and returns: convert_by_vocab