def send_refresh_tools(self):
        self.celery.conf.BROKER_URL = self.settings['BROKER_URL']
        payload = {
            'session': self._login_user(self.settings['user']),
            'url': self._rb_url(),
        }
        self.celery.control.broadcast('update_tools_list', payload=payload)
Request workers to update tool list.
dataset/ETHPy150Open reviewboard/ReviewBot/extension/reviewbotext/extension.py/ReviewBotExtension.send_refresh_tools