docs: public static Broker createBroker(int id, String brokerInfoString) {
          String[] brokerInfo = brokerInfoString.split(":");
          String creator = brokerInfo[0].replace('#', ':');
          String hostname = brokerInfo[1].replace('#', ':');
          String port = brokerInfo[2];
          boolean autocreated = Boolean.valueOf(brokerInfo.length > 3 ? brokerInfo[3] : "true");
          return new Broker(id, creator, hostname, Integer.parseInt(port), autocreated);
      }