code: def unpickle(file):
      fo = open(file, "rb")
      dict = pkl.load(fo)
      fo.close()
      return dict
  
file_path: cleverhans/cleverhans_v3.1.0/examples/multigpu_advtrain/utils_cifar.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import os
  import cPickle
  import numpy
  from six.moves import range
  import tensorflow
label_desc: Use image node_id 1 for calling a global function with example usage: unpickle(file) and returns: dict