code: def setUp(self):
      pass
  
file_path: chainerrl/tests/test_ale.py
imports: import random
  import sys
  import tempfile
  import unittest
  import numpy
  from PIL import Image
  from chainerrl.envs import ale
label_desc: Use image node_id 1 for calling the TestALE obj's underlying member method code with example usage: obj.setUp() without return types