class_docstr: TestCase with some extra features
class_docstr_tok: ["TestCase","with","some","extra","features"]
code: def setUp(self):
      self.test_start = time.time()
      # seed the randomness
      np.random.seed(1234)
  
file_path: cleverhans/cleverhans_v3.1.0/cleverhans/devtools/checks.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import time
  import unittest
  import numpy
label_desc: Use image node_id 1 for calling the CleverHansTest obj's underlying member method code with example usage: obj.setUp() without return types