code: public void serialize(XmlSerializer serializer, String elementName, Object element)
        throws IOException {
      serialize(serializer, elementName, element, true);
    }
docs: Shows a debug string representation of an element data object of key/value pairs.
  
  @param element element data object ({@link GenericXml}, {@link Map}, or any object with public
  fields)
  @param elementName XML element local name prefixed by its namespace alias
  @throws IOException I/O exception