code: def ok(self):
      self.result = ""
      keys = self.key_string.get().strip()
      if not keys:
          self.showerror(
              title=self.keyerror_title,
              parent=self,
              message="No key specified.",
          )
          return
      if (self.advanced or self.keys_ok(keys)) and self.bind_ok(keys):
          self.result = keys
      return
  
imports: from tkinter import Toplevel, Listbox, StringVar, TclError
  from tkinter.ttk import Frame, Button, Checkbutton, Entry, Label, Scrollbar
  from tkinter import messagebox
  from tkinter.simpledialog import _setup_dialog
  import string
  import sys
label_desc: Use image node_id 10 for calling the GetKeysFrame obj's underlying member method code with example usage: obj.ok() without return types