code: def step(self, action):
      action = int(action)
      obs = np.random.random(4) * 2 - 1
      reward = np.random.choice([0.0, 1.0])
      done = np.random.choice([True, False], p=[0.1, 0.9])
      info = {}
      return obs, reward, done, info
  
imports: import numpy
  from random import random
label_desc: Use image node_id 2 for calling the CartPoleEnv obj's underlying member method code with example usage: obj.step(action) and returns: obs,  reward,  done,  info