readXmlContentTree method
Parses the given XML content string into an XmlNode tree.
This allows you to traverse or inspect XML data without binding it to a specific object type.
Example
final tree = mapper.readXmlContentTree('<root><child>value</child></root>');
print(tree.get('child').getText()); // "value"
Notes
Implementation
@override
XmlNode readXmlContentTree(String content) {
final parser = getXmlParser(content);
final node = readXmlTree(parser);
parser.close();
return node;
}