gets the current status for the cluster
        :param cluster_id: id of the cluster
        :return: Stat or Status

def get(cluster_id, broker=None):
        """
        gets the current status for the cluster
        :param cluster_id: id of the cluster
        :return: Stat or Status
        """
        if not broker:
            broker = get_broker()
        pack = broker.get_stat(Stat.get_key(cluster_id))
        if pack:
            try:
                return SignedPackage.loads(pack)
            except BadSignature:
                return None
        return Status(cluster_id)