cancelSubscriptions method
Cancels and removes all subscriptions registered for node.
Implementation
FutureOr<List<Object>> cancelSubscriptions(T node) {
var l = _elementsSubscriptions?.remove(node);
if (l == null || l.isEmpty) return [];
var f = domGenerator.cancelEventSubscriptions(node, l);
if (f is Future<bool>) {
return f.then((value) => l);
} else {
return l;
}
}