code: def _get_reward(self, action):
      return 1 if np.all(self.state == action) else 0
  
imports: import numpy
  from typing import Optional
  from gym import Env, Space
  from gym.spaces import Discrete, MultiDiscrete, MultiBinary, Box
label_desc: Use image node_id 5 for calling the IdentityEnv obj's underlying member method code with example usage: obj._get_reward(action) and returns: unknown