A text node of an XmlNodes tree. A string a node holds is markup, printed as it is (new XmlNode('p', [], ['<b>hi</b>']) shows a bold "hi"); an XmlText is text, escaped when it is printed. Hold in one what must not be read as markup: what a user wrote, a page's title (HtmlDocument::setTitle). It is escaped once, also in a document that escapes the strings it prints (the escape option), and is valid in XML too.
class MMO\core\helpers\XmlText
implements MMO\core\interfaces\iRenderable