code: def test_tic_tac_toe(self):
      raw_env = rl_environment.Environment("tic_tac_toe")
      env = open_spiel_wrapper.OpenSpielWrapper(raw_env)
  
      # Test converted observation spec.
      observation_spec = env.observation_spec()
      self.assertEqual(type(observation_spec), open_spiel_wrapper.OLT)
      self.assertEqual(type(observation_spec.observation), specs.Array)
      self.assertEqual(
          type(observation_spec.legal_actions), specs.Array
      )
      self.assertEqual(type(observation_spec.terminal), specs.Array)
  
      # Test converted action spec.
      action_spec: specs.DiscreteArray = env.action_spec()
      self.assertEqual(type(action_spec), specs.DiscreteArray)
      self.assertEqual(action_spec.shape, ())
      self.assertEqual(action_spec.minimum, 0)
      self.assertEqual(action_spec.maximum, 8)
      self.assertEqual(action_spec.num_values, 9)
      self.assertEqual(action_spec.dtype, np.dtype("int32"))
  
      # Test step.
      timestep = env.reset()
      self.assertTrue(timestep.first())
      _ = env.step([0])
      env.close()
  
imports: import unittest
  from dm_env import specs
  import numpy
  from absl.testing import absltest
label_desc: Use image node_id 1 for calling the OpenSpielWrapperTest obj's underlying member method code with example usage: obj.test_tic_tac_toe() without return types