import 'package:power_state/power_state.dart';

class CounterController extends PowerController {
  int count = 1;

  increment() {
    count++;
    notifyListeners();
  }
}

final CounterController controller = PowerVault.put(CounterController());

 PowerBuilder<CounterController>(
              builder: (countController) {
                return Text(countController.count.toString());
              },
            ),

final CounterController countController = PowerVault.find();

PowerVault.delete<CounterController>();

PowerSelector<CounterController>(
              <!-- It will listen selectorValue -->
              selector: () => controller.selectorValue,
              builder: (countController) {
                return Text(countController.selectorValue.toString());
              },
 ),