code: def listselect_event(self, event):
      if self.is_active():
          self.userwantswindow = True
          cursel = int(self.listbox.curselection()[0])
          self._change_start(self.completions[cursel])
  
imports: import platform
  from tkinter import *
  from tkinter.ttk import Scrollbar
  from idlelib.autocomplete import FILES, ATTRS
  from idlelib.multicall import MC_SHIFT
label_desc: Use image node_id 10 for calling the AutoCompleteWindow obj's underlying member method code with example usage: obj.listselect_event(event) without return types