def __init__()

in sonic_on_ray/sonic_on_ray.py [0:0]


    def __init__(self, env):
        """Warp frames to 84x84 as done in the Nature paper and later work."""
        gym.ObservationWrapper.__init__(self, env)
        self.width = 80
        self.height = 80
        self.observation_space = spaces.Box(low=0, high=255,
                                            shape=(self.height, self.width, 1),
                                            dtype=np.uint8)