code: def help_toggled(self, flag):
          
          if flag:
              self.help_button.setText(self.tr('Hide Help'))
              self.show_help()
          else:
              self.help_button.setText(self.tr('Show Help'))
              self.hide_help()
docs: Show or hide the help tab in the stacked widget.
  
          :param flag: Flag indicating whether help should be shown or hidden.
          :type flag: bool