docs: public void marshall(ProgressCounters progressCounters, ProtocolMarshaller protocolMarshaller) {
  
          if (progressCounters == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(progressCounters.getTotalSteps(), TOTALSTEPS_BINDING);
              protocolMarshaller.marshall(progressCounters.getSuccessSteps(), SUCCESSSTEPS_BINDING);
              protocolMarshaller.marshall(progressCounters.getFailedSteps(), FAILEDSTEPS_BINDING);
              protocolMarshaller.marshall(progressCounters.getCancelledSteps(), CANCELLEDSTEPS_BINDING);
              protocolMarshaller.marshall(progressCounters.getTimedOutSteps(), TIMEDOUTSTEPS_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }