code: def step(self, action):
      self.t += 1
      return (
          np.array([self.t]),
          self.t,
          self.t == len(self.returned_rewards),
          False,
          {},
      )
  
file_path: gym/tests/wrappers/test_normalize.py
imports: from typing import Optional
  import numpy
  from numpy.testing import assert_almost_equal
  import gym
  from gym.wrappers.normalize import NormalizeObservation, NormalizeReward
label_desc: Use image node_id 2 for calling the DummyRewardEnv obj's underlying member method code with example usage: obj.step(action) and returns: np,  self,  unknown,  False,  dict