code: def tearDownClass(cls) -> None:
      ray.shutdown()
  
imports: import logging
  import unittest
  import ray
  from ray.rllib.algorithms.appo import APPOConfig
  from ray.rllib.algorithms.dqn import DQNConfig
  from ray.rllib.algorithms.impala import ImpalaConfig
  from ray.rllib.algorithms.ppo import PPOConfig
  from ray.rllib.algorithms.sac import SACConfig
  from ray.rllib.utils.test_utils import check_supported_spaces
label_desc: Use image node_id 2 for calling the TestSupportedSpacesAPPO obj's underlying member method code with example usage: obj.tearDownClass(cls) without return types