def __init__(self):
  headless = os.environ.get('GYM_NEYBOY_ENV_NON_HEADLESS', None) is None
  self.game = SyncGame.create(headless=headless)
  self.state = self.game.get_state()
  self.viewer = None
  self.observation_space = spaces.Box(low=0, high=255, shape=self.state.snapshot.shape, dtype=np.uint8)
  self.action_space = spaces.Discrete(3)