docs: public void marshall(Event event, ProtocolMarshaller protocolMarshaller) {
  
          if (event == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(event.getEventId(), EVENTID_BINDING);
              protocolMarshaller.marshall(event.getEventName(), EVENTNAME_BINDING);
              protocolMarshaller.marshall(event.getReadOnly(), READONLY_BINDING);
              protocolMarshaller.marshall(event.getAccessKeyId(), ACCESSKEYID_BINDING);
              protocolMarshaller.marshall(event.getEventTime(), EVENTTIME_BINDING);
              protocolMarshaller.marshall(event.getEventSource(), EVENTSOURCE_BINDING);
              protocolMarshaller.marshall(event.getUsername(), USERNAME_BINDING);
              protocolMarshaller.marshall(event.getResources(), RESOURCES_BINDING);
              protocolMarshaller.marshall(event.getCloudTrailEvent(), CLOUDTRAILEVENT_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }