code: def render(self, mode="human"):
      image_shape = (32, 32, 3)
      return np.zeros(image_shape, dtype=np.uint8)
  
file_path: gym/tests/wrappers/test_nested_dict.py
imports: from typing import Optional
  import numpy
  import pytest
  import gym
  from gym.spaces import Box, Dict, Tuple
  from gym.wrappers import FilterObservation, FlattenObservation
label_desc: Use image node_id 2 for calling the FakeEnvironment obj's underlying member method code with example usage: obj.render(mode) and returns: np