docs: public static void writeXML(DocumentFragment fragment, File file) throws ParserConfigurationException, IOException {
  		assert fragment != null : AssertMessages.notNullParameter(0);
  		assert file != null : AssertMessages.notNullParameter(1);
  		try (FileOutputStream fos = new FileOutputStream(file)) {
  			writeNode(fragment, fos);
  		}
  	}