code: def step(self, action):
      observation = f"step({action:s})"
      reward, terminated, truncated = 0.0, False, False
      return observation, reward, terminated, truncated, {}
  
imports: import time
  from typing import Optional
  import numpy
  import gym
  from gym.spaces import Box, Dict, Discrete, MultiBinary, MultiDiscrete, Tuple
  from gym.utils.seeding import RandomNumberGenerator
label_desc: Use image node_id 3 for calling the CustomSpaceEnv obj's underlying member method code with example usage: obj.step(action) and returns: observation,  reward,  terminated,  truncated,  dict