code: def Cancel(self, event=None):
      self.result = None
      self.grab_release()
      self.destroy()
  
file_path: catboost/contrib/tools/python/src/Lib/idlelib/configHelpSourceEdit.py
imports: import os
  import sys
  from Tkinter import *
  import tkMessageBox
  import tkFileDialog
label_desc: Use image node_id 7 for calling the GetHelpSourceDialog obj's underlying member method code with example usage: obj.Cancel(event) without return types