code: 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;
      }
docs: List of available engine types and versions.
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setBrokerEngineTypes(java.util.Collection)} or {@link #withBrokerEngineTypes(java.util.Collection)} if
  you want to override the existing values.
  </p>
  
  @param brokerEngineTypes
  List of available engine types and versions.
  @return Returns a reference to this object so that method calls can be chained together.