docs: public void marshall(UpdateSubscriberRequest updateSubscriberRequest, ProtocolMarshaller protocolMarshaller) {
  
          if (updateSubscriberRequest == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(updateSubscriberRequest.getAccountId(), ACCOUNTID_BINDING);
              protocolMarshaller.marshall(updateSubscriberRequest.getBudgetName(), BUDGETNAME_BINDING);
              protocolMarshaller.marshall(updateSubscriberRequest.getNotification(), NOTIFICATION_BINDING);
              protocolMarshaller.marshall(updateSubscriberRequest.getOldSubscriber(), OLDSUBSCRIBER_BINDING);
              protocolMarshaller.marshall(updateSubscriberRequest.getNewSubscriber(), NEWSUBSCRIBER_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }