code: public void marshall(ReplicaSettingsDescription replicaSettingsDescription, ProtocolMarshaller protocolMarshaller) {
  
          if (replicaSettingsDescription == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(replicaSettingsDescription.getRegionName(), REGIONNAME_BINDING);
              protocolMarshaller.marshall(replicaSettingsDescription.getReplicaStatus(), REPLICASTATUS_BINDING);
              protocolMarshaller.marshall(replicaSettingsDescription.getReplicaBillingModeSummary(), REPLICABILLINGMODESUMMARY_BINDING);
              protocolMarshaller.marshall(replicaSettingsDescription.getReplicaProvisionedReadCapacityUnits(), REPLICAPROVISIONEDREADCAPACITYUNITS_BINDING);
              protocolMarshaller.marshall(replicaSettingsDescription.getReplicaProvisionedReadCapacityAutoScalingSettings(),
                      REPLICAPROVISIONEDREADCAPACITYAUTOSCALINGSETTINGS_BINDING);
              protocolMarshaller.marshall(replicaSettingsDescription.getReplicaProvisionedWriteCapacityUnits(), REPLICAPROVISIONEDWRITECAPACITYUNITS_BINDING);
              protocolMarshaller.marshall(replicaSettingsDescription.getReplicaProvisionedWriteCapacityAutoScalingSettings(),
                      REPLICAPROVISIONEDWRITECAPACITYAUTOSCALINGSETTINGS_BINDING);
              protocolMarshaller.marshall(replicaSettingsDescription.getReplicaGlobalSecondaryIndexSettings(), REPLICAGLOBALSECONDARYINDEXSETTINGS_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.