pump method
Awaits for providers to rebuild/be disposed and for listeners to be notified.
This call is recursive and will wait for ancestor ProviderContainers to rebuild their providers too.
Implementation
Future<void> pump() async {
final a = scheduler.pendingFuture;
await Future.wait<void>([
if (a != null) a,
if (parent case final parent?) parent.pump(),
]);
}