code: def __init__(self, env):
      gym.RewardWrapper.__init__(self, env)
  
imports: import time
  import numpy
  from collections import deque
  import gym
  from gym import spaces
  from parl.env.compat_wrappers import CompatWrapper, is_gym_version_ge, V_NPRANDOM_CHANGED
  import cv2
label_desc: Use image node_id 1 to create a new ClipRewardEnv object from inherited base classes: gym with example: obj = ClipRewardEnv(env)