docs: public DescribeBrokerEngineTypesResult withBrokerEngineTypes(BrokerEngineType... brokerEngineTypes) {
          if (this.brokerEngineTypes == null) {
              setBrokerEngineTypes(new java.util.ArrayList<BrokerEngineType>(brokerEngineTypes.length));
          }
          for (BrokerEngineType ele : brokerEngineTypes) {
              this.brokerEngineTypes.add(ele);
          }
          return this;
      }