code: def find_image_comparison():
      def dummy_comparison(*args, **kwargs):
          return lambda *args, **kwargs: None
  
      if plotly is None:
          return dummy_comparison
      return image_comparison
  
file_path: python-igraph/tests/drawing/plotly/utils.py
imports: from pathlib import Path
  import sys
  import inspect
  import functools
label_desc: Use image node_id 1 for calling a global function with example usage: find_image_comparison() and returns: image_comparison, function, dummy_comparison