code: def test_image_observation_space():
      # TODO: test image observation space
      pass
  
file_path: coach/rl_coach/tests/test_spaces.py
imports: import os
  import sys
  import pytest
  from rl_coach.spaces import DiscreteActionSpace, BoxActionSpace, MultiSelectActionSpace, ObservationSpace, AgentSelection, VectorObservationSpace, AttentionActionSpace
  import numpy
label_desc: Use image node_id 8 for calling a global function with example usage: test_image_observation_space() without return types