code: @Override
      public GetHostReservationPurchasePreviewResult getHostReservationPurchasePreview(GetHostReservationPurchasePreviewRequest request) {
          request = beforeClientExecution(request);
          return executeGetHostReservationPurchasePreview(request);
      }
docs: <p>
  Preview a reservation purchase with configurations that match those of your Dedicated Host. You must have active
  Dedicated Hosts in your account before you purchase a reservation.
  </p>
  <p>
  This is a preview of the <a>PurchaseHostReservation</a> action and does not result in the offering being
  purchased.
  </p>
  
  @param getHostReservationPurchasePreviewRequest
  @return Result of the GetHostReservationPurchasePreview operation returned by the service.
  @sample AmazonEC2.GetHostReservationPurchasePreview
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/GetHostReservationPurchasePreview"
  target="_top">AWS API Documentation</a>