code: def test_execute_custom_function():
      pass
  
file_path: Augmentor/tests/test_custom_operations.py
imports: import os
  import sys
  import Augmentor
  from Augmentor.Operations import Operation
  import tempfile
  from PIL import Image
  import io
label_desc: Use image node_id 2 for calling a global function with example usage: test_execute_custom_function() without return types