code: def setUpClass(cls):
      pass
  
imports: import os
  import unittest
  import numpy
  import tensorflow
  import tensorlayer
  from tensorlayer.layers import *
  from tensorlayer.models import *
  from tests.utils import CustomTestCase
label_desc: Use image node_id 1 for calling the Model_Core_Test obj's underlying member method code with example usage: obj.setUpClass(cls) without return types