code: def _get_data_dir():
      return "/tmp"
  
file_path: trax/trax/tf_numpy/examples/mnist/dataset.py
imports: import gzip
  import os
  import pickle
  import random
  import urllib
  import numpy
label_desc: Use image node_id 4 for calling a global function with example usage: _get_data_dir() and returns: str