code: def _check_box_toggled(self, widget, data=None):
          
          active = widget.get_active()
          arg_name = data
  
          if 'entry' in self.args[arg_name]:
              self.args[arg_name]['entry'].set_sensitive(active)
          if 'browse_btn' in self.args[arg_name]:
              self.args[arg_name]['browse_btn'].set_sensitive(active)
  
          self.path_window.show_all()
docs: Function manipulates with entries and buttons.