docs: public void marshall(ReservedElasticsearchInstanceOffering reservedElasticsearchInstanceOffering, ProtocolMarshaller protocolMarshaller) {
  
          if (reservedElasticsearchInstanceOffering == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(reservedElasticsearchInstanceOffering.getReservedElasticsearchInstanceOfferingId(),
                      RESERVEDELASTICSEARCHINSTANCEOFFERINGID_BINDING);
              protocolMarshaller.marshall(reservedElasticsearchInstanceOffering.getElasticsearchInstanceType(), ELASTICSEARCHINSTANCETYPE_BINDING);
              protocolMarshaller.marshall(reservedElasticsearchInstanceOffering.getDuration(), DURATION_BINDING);
              protocolMarshaller.marshall(reservedElasticsearchInstanceOffering.getFixedPrice(), FIXEDPRICE_BINDING);
              protocolMarshaller.marshall(reservedElasticsearchInstanceOffering.getUsagePrice(), USAGEPRICE_BINDING);
              protocolMarshaller.marshall(reservedElasticsearchInstanceOffering.getCurrencyCode(), CURRENCYCODE_BINDING);
              protocolMarshaller.marshall(reservedElasticsearchInstanceOffering.getPaymentOption(), PAYMENTOPTION_BINDING);
              protocolMarshaller.marshall(reservedElasticsearchInstanceOffering.getRecurringCharges(), RECURRINGCHARGES_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }