*
* @note As of 1.21, XmlJsCode objects cannot be nested inside objects or arrays. The sole
* exception is the $args argument to Xml::encodeJsCall() because Xml::encodeJsVar() is
*
* @note As of 1.21, XmlJsCode objects cannot be nested inside objects or arrays. The sole
* exception is the $args argument to Xml::encodeJsCall() because Xml::encodeJsVar() is