code: def step(self, action):
      obs, reward, terminated, truncated, info = self.env.step(action)
      return self._encode_obs(obs), reward, terminated, truncated, info
  
file_path: ray/rllib/examples/env/look_and_push.py
imports: import gymnasium
  import numpy
label_desc: Use image node_id 3 for calling the OneHot obj's underlying member method code with example usage: obj.step(action) and returns: self,  reward,  terminated,  truncated,  info