code: public GameSessionQueue withDestinations(GameSessionQueueDestination... destinations) {
          if (this.destinations == null) {
              setDestinations(new java.util.ArrayList<GameSessionQueueDestination>(destinations.length));
          }
          for (GameSessionQueueDestination ele : destinations) {
              this.destinations.add(ele);
          }
          return this;
      }
docs: <p>
  List of fleets that can be used to fulfill game session placement requests in the queue. Fleets are identified by
  either a fleet ARN or a fleet alias ARN. Destinations are listed in default preference order.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setDestinations(java.util.Collection)} or {@link #withDestinations(java.util.Collection)} if you want to
  override the existing values.
  </p>
  
  @param destinations
  List of fleets that can be used to fulfill game session placement requests in the queue. Fleets are
  identified by either a fleet ARN or a fleet alias ARN. Destinations are listed in default preference
  order.
  @return Returns a reference to this object so that method calls can be chained together.