def get_all(broker=None):
        """
        Get the status for all currently running clusters with the same prefix
        and secret key.
        :return: list of type Stat
        """
        if not broker:
            broker = get_broker()
        stats = []
        packs = broker.get_stats('{}:*'.format(Conf.Q_STAT)) or []
        for pack in packs:
            try:
                stats.append(SignedPackage.loads(pack))
            except BadSignature:
                continue
        return stats
Get the status for all currently running clusters with the same prefix
        and secret key.
        :return: list of type Stat