code: def completion_post_event_input_accelerators(editor, event):
      
  
      if editor.completer:
          if editor.completer.popup().isVisible():
              perform_completion(editor)
      return True
docs: Implements completion post event input accelerators.
  
      :param editor: Document editor.
      :type editor: QWidget
      :param event: Event being handled.
      :type event: QEvent
      :return: Process event.
      :rtype: bool