def METHOD_NAME():
    """Test seeding for sync vector environments."""
    env = make_env("BipedalWalker-v3", seed=123)()
    sync_vector_env = SyncVectorEnv([make_env("BipedalWalker-v3", seed=123)])
    assert_rng_equal(env.action_space.np_random, sync_vector_env.action_space.np_random)
    for _ in range(100):
        env_action = env.action_space.sample()
        vector_action = sync_vector_env.action_space.sample()
        assert np.all(env_action == vector_action)