var encoding/xml.marshalerAttrType

3 uses

	encoding/xml (current package)
		marshal.go#L421: 	marshalerAttrType = reflect.TypeFor[MarshalerAttr]()
		marshal.go#L583: 	if val.CanInterface() && val.Type().Implements(marshalerAttrType) {
		marshal.go#L596: 		if pv.CanInterface() && pv.Type().Implements(marshalerAttrType) {