def get_broks(self, broker_name):
        """Send a HTTP request to the satellite (GET /_broks)
        Get broks from the satellite.
        Un-serialize data received.

        :param broker_name: the concerned broker link
        :type broker_name: BrokerLink
        :return: Broks list on success, [] on failure
        :rtype: list
        """
        res = self.con.get('_broks', {'broker_name': broker_name}, wait=False)
        logger.debug("Got broks from %s: %s", self.name, res)
        return unserialize(res, True)