code: public void marshall(CodeContentUpdate codeContentUpdate, ProtocolMarshaller protocolMarshaller) {
  
          if (codeContentUpdate == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(codeContentUpdate.getTextContentUpdate(), TEXTCONTENTUPDATE_BINDING);
              protocolMarshaller.marshall(codeContentUpdate.getZipFileContentUpdate(), ZIPFILECONTENTUPDATE_BINDING);
              protocolMarshaller.marshall(codeContentUpdate.getS3ContentLocationUpdate(), S3CONTENTLOCATIONUPDATE_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.