isEmpty property
If the internal NotifierBase is an EmptyValueNotifier, you can check if it is empty.
Trying to read isEmpty, when the internal NotifierBase is not an
EmptyValueNotifier returns null
.
Implementation
@override
bool? get isEmpty {
if (_notifier is! EmptyValueNotifier<V>) return null;
return (_notifier as EmptyValueNotifier<V>).isEmpty;
}