code: def glut_idle():
      # Dummy idle function
      pass
  
file_path: catboost/contrib/python/ipython/py2/IPython/lib/inputhookglut.py
imports: from __future__ import print_function
  import os
  import sys
  import time
  import signal
  import OpenGL.GLUT
  import OpenGL.platform
  from timeit import default_timer
label_desc: Use image node_id 2 for calling a global function with example usage: glut_idle() without return types