code: def return_event(self, event):
      if self.default is None:
          self.root.bell()
      else:
          self.done(self.default)
  
imports: from tkinter import *
  from tkinter import _get_temp_root, _destroy_temp_root
  from tkinter import messagebox
label_desc: Use image node_id 3 for calling the SimpleDialog obj's underlying member method code with example usage: obj.return_event(event) without return types