createWith method
Implementation
Future<V> createWith(FutureOr modification(V input)) async {
return applyChanges((_) async {
final newRecord = repository.instantiate();
modification(newRecord);
final result = await repository.create(newRecord);
final added = getOrPut(result.mkey!, result);
await afterCreate(result);
await afterSave(result);
_.set(result.mkey!, added);
return result;
});
}