Yield

main.dart

void main() {
  yieldTester().listen((String test) => print(test));
}

Stream<String> yieldTester() async*{
  yield "RSC";
  yield* test();
  yield "was here";
}

Stream<String> test()async*{
  yield "dMerchant";
  await Future.delayed(Duration(seconds: 1));
  yield "flutter";
  yield "team";
}