code: def get_all(broker=None):
          
          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
docs: Get the status for all currently running clusters with the same prefix
          and secret key.
          :return: list of type Stat