code: def _get_text_data(filepath):
      with tf.gfile.GFile(filepath, mode="r") as text_file:
          words = []
          for line in text_file:
              word = line.strip().split()[2]
              words.append(word)
          return " ".join(words)
  
file_path: tensor2tensor/tensor2tensor/data_generators/audio.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import os
  import subprocess
  import tarfile
  import wave
  from absl import flags
  import tensorflow.compat.v1
label_desc: Use image node_id 4 for calling a global function with example usage: _get_text_data(filepath) and returns: str