code: def get_t2t_vocabulary(
      data_dir=gin.REQUIRED, vocabulary_filename=gin.REQUIRED
  ):
      return T2tVocabulary(os.path.join(data_dir, vocabulary_filename))
  
file_path: mesh/mesh_tensorflow/transformer/t2t_vocabulary.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import os
  import gin
  from mesh_tensorflow.transformer import vocabulary
label_desc: Use image node_id 1 for calling a global function with example usage: get_t2t_vocabulary(data_dir, vocabulary_filename) and returns: T2tVocabulary