code: public void marshall(PlacementStatistics placementStatistics, ProtocolMarshaller protocolMarshaller) {
  
          if (placementStatistics == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(placementStatistics.getInboxPercentage(), INBOXPERCENTAGE_BINDING);
              protocolMarshaller.marshall(placementStatistics.getSpamPercentage(), SPAMPERCENTAGE_BINDING);
              protocolMarshaller.marshall(placementStatistics.getMissingPercentage(), MISSINGPERCENTAGE_BINDING);
              protocolMarshaller.marshall(placementStatistics.getSpfPercentage(), SPFPERCENTAGE_BINDING);
              protocolMarshaller.marshall(placementStatistics.getDkimPercentage(), DKIMPERCENTAGE_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.