code: def setUpClass(cls):
      ray.init()
  
file_path: ray/rllib_contrib/alpha_star/tests/test_alpha_star.py
imports: import unittest
  from rllib_alpha_star.alpha_star import AlphaStarConfig
  import ray
  from ray.rllib.env.utils import try_import_open_spiel, try_import_pyspiel
  from ray.rllib.env.wrappers.open_spiel import OpenSpielEnv
  from ray.rllib.utils.test_utils import check_compute_single_action, check_train_results, framework_iterator
  from ray.tune import register_env
label_desc: Use image node_id 1 for calling the TestAlphaStar obj's underlying member method code with example usage: obj.setUpClass(cls) without return types