code: def loop_gtk(kernel):
      """Start the kernel, coordinating with the GTK event loop"""
      from .gui.gtkembed import GTKEmbed
  
      gtk_kernel = GTKEmbed(kernel)
      gtk_kernel.start()
      kernel._gtk = gtk_kernel
  
imports: import os
  import sys
  import platform
  import zmq
  from distutils.version import LooseVersion
  from traitlets.config.application import Application
  from IPython.utils import io
label_desc: Use image node_id 14 for calling a global function with example usage: loop_gtk(kernel) without return types