code: def _cupy_testing_random():
      testing = cuda.cupy.testing
      if hasattr(testing, "random"):
          return testing.random
      return testing._random
  
imports: from __future__ import absolute_import
  import atexit
  import functools
  import os
  import random
  import types
  import numpy
  from chainer.backends import cuda
  from chainer.testing import _bundle
label_desc: Use image node_id 3 for calling a global function with example usage: _cupy_testing_random() and returns: testing, testing