enabled property

bool get enabled

@override
bool get enabled => _enabled?.get() ?? true;

set enabled (dynamic v)

@override
set enabled(dynamic v) {
  if (_enabled != null) {
    _enabled!.set(v);
  } else if (v != null) {
    _enabled = BooleanObservable(Binding.toKey(id, 'enabled'), v,
        scope: scope, listener: onPropertyChange);
  }
}