code: def glut_int_handler(signum, frame):
      # Catch sigint and print the defaultipyt   message
      signal.signal(signal.SIGINT, signal.default_int_handler)
      print("\nKeyboardInterrupt")
  
file_path: catboost/contrib/python/ipython/py2/IPython/terminal/pt_inputhooks/glut.py
imports: from __future__ import print_function
  import sys
  import time
  import signal
  import OpenGL.GLUT
  import OpenGL.platform
  from timeit import default_timer
label_desc: Use image node_id 4 for calling a global function with example usage: glut_int_handler(signum, frame) without return types