code: public void marshall(DocumentationPart documentationPart, ProtocolMarshaller protocolMarshaller) {
  
          if (documentationPart == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(documentationPart.getId(), ID_BINDING);
              protocolMarshaller.marshall(documentationPart.getLocation(), LOCATION_BINDING);
              protocolMarshaller.marshall(documentationPart.getProperties(), PROPERTIES_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.