code: def tearDownClass(cls):
      super(TestCompareEnvironments, cls).tearDownClass()
      cls._env.close()
      cls._mock_env.close()
  
file_path: pysc2/pysc2/env/mock_sc2_env_comparison_test.py
imports: from absl.testing import absltest
  from pysc2.env import mock_sc2_env
  from pysc2.env import sc2_env
label_desc: Use image node_id 2 for calling the TestCompareEnvironments obj's underlying member method code with example usage: obj.tearDownClass(cls) without return types