class_docstr: Clip the reward by its sign.
class_docstr_tok: ["Clip","the","reward","by","its","sign","."]
docstr: gym.Env step function.
docstr_tok: ["gym.Env","step","function","."]
code: def step(self, ac):
      """gym.Env step function."""
      obs, reward, done, info = self.env.step(ac)
      return obs, np.sign(reward), done, info
  
imports: import gym
  import numpy
label_desc: Use image node_id 1 for calling the ClipReward obj's underlying member method code with example usage: obj.step(ac) and returns: obs,  np,  done,  info