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