code: def _get_timit(directory):
      """Extract TIMIT datasets to directory unless directory/timit exists."""
      if os.path.exists(os.path.join(directory, "timit")):
          return
  
      assert FLAGS.timit_paths
      for path in FLAGS.timit_paths.split(","):
          with tf.gfile.GFile(path) as f:
              with tarfile.open(
                  fileobj=f, mode="r:gz"
              ) as timit_compressed:
                  timit_compressed.extractall(directory)
  
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 1 for calling a global function with example usage: _get_timit(directory) without return types