deserialize method
Deserializes the FML template elements, attributes and children
Implementation
@override
void deserialize(XmlElement xml) {
// deserialize
super.deserialize(xml);
method = Xml.attribute(node: xml, tag: 'method');
ontimeout = Xml.get(node: xml, tag: 'ontimeout');
onreadfail = Xml.get(node: xml, tag: 'onwritefail');
onwritefail = Xml.get(node: xml, tag: 'onreadfail');
}