unobserved method
May override to be notified when changes
is no longer observed.
Implementation
@override
@protected
@mustCallSuper
void unobserved() {
_changes = _queue = null;
}
May override to be notified when changes
is no longer observed.
@override
@protected
@mustCallSuper
void unobserved() {
_changes = _queue = null;
}