code: def test_lunar_lander_heuristics():
      """Tests the LunarLander environment by checking if the heuristic lander works."""
      lunar_lander = gym.make(
          "LunarLander-v2", disable_env_checker=True
      )
      total_reward = demo_heuristic_lander(lunar_lander, seed=1)
      assert total_reward > 100
  
file_path: gym/tests/envs/test_env_implementation.py
imports: from typing import Optional
  import numpy
  import pytest
  import gym
  from gym.envs.box2d import BipedalWalker
  from gym.envs.box2d.lunar_lander import demo_heuristic_lander
  from gym.envs.toy_text import TaxiEnv
  from gym.envs.toy_text.frozen_lake import generate_random_map
label_desc: Use image node_id 1 for calling a global function with example usage: test_lunar_lander_heuristics() without return types