code: def test_is_pickleable():
      env = GymEnv("MountainCar-v0", max_episode_length=50)
      h = pickle.dumps(env)
      env_pickled = pickle.loads(h)
      assert env.spec == env_pickled.spec
  
imports: import math
  import pickle
  import gym
  import pytest
  from garage import EnvSpec
  from garage.envs import GymEnv
  from garage.envs.bullet import BulletEnv
  from garage.envs.wrappers.clip_reward import ClipReward
  from garage.envs.wrappers.episodic_life import EpisodicLife
  from garage.envs.wrappers.grayscale import Grayscale
  from garage.envs.wrappers.max_and_skip import MaxAndSkip
  from garage.envs.wrappers.noop import Noop
  from garage.envs.wrappers.resize import Resize
  from garage.envs.wrappers.stack_frames import StackFrames
label_desc: Use image node_id 14 for calling a global function with example usage: test_is_pickleable() without return types