docs: public void marshall(DescribeEventsRequest describeEventsRequest, ProtocolMarshaller protocolMarshaller) {
  
          if (describeEventsRequest == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(describeEventsRequest.getSourceIdentifier(), SOURCEIDENTIFIER_BINDING);
              protocolMarshaller.marshall(describeEventsRequest.getSourceType(), SOURCETYPE_BINDING);
              protocolMarshaller.marshall(describeEventsRequest.getStartTime(), STARTTIME_BINDING);
              protocolMarshaller.marshall(describeEventsRequest.getEndTime(), ENDTIME_BINDING);
              protocolMarshaller.marshall(describeEventsRequest.getDuration(), DURATION_BINDING);
              protocolMarshaller.marshall(describeEventsRequest.getEventCategories(), EVENTCATEGORIES_BINDING);
              protocolMarshaller.marshall(describeEventsRequest.getFilters(), FILTERS_BINDING);
              protocolMarshaller.marshall(describeEventsRequest.getMaxRecords(), MAXRECORDS_BINDING);
              protocolMarshaller.marshall(describeEventsRequest.getMarker(), MARKER_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }