code: def test_step(self):
      env = RL2Env(PointEnv())
  
      env.reset()
      es = env.step(env.action_space.sample())
      assert env.observation_space.contains(es.observation)
  
imports: from garage.envs import PointEnv
  from garage.tf.algos.rl2 import RL2Env
label_desc: Use image node_id 2 for calling the TestRL2Env obj's underlying member method code with example usage: obj.test_step() without return types