docs: public void marshall(FieldStats fieldStats, ProtocolMarshaller protocolMarshaller) {
  
          if (fieldStats == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(fieldStats.getMin(), MIN_BINDING);
              protocolMarshaller.marshall(fieldStats.getMax(), MAX_BINDING);
              protocolMarshaller.marshall(fieldStats.getCount(), COUNT_BINDING);
              protocolMarshaller.marshall(fieldStats.getMissing(), MISSING_BINDING);
              protocolMarshaller.marshall(fieldStats.getSum(), SUM_BINDING);
              protocolMarshaller.marshall(fieldStats.getSumOfSquares(), SUMOFSQUARES_BINDING);
              protocolMarshaller.marshall(fieldStats.getMean(), MEAN_BINDING);
              protocolMarshaller.marshall(fieldStats.getStddev(), STDDEV_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }