Stream<bool> getStreamBool() async* {}
Stream<bool> test1() async* {}
Stream<bool> test2() => getNull();
Stream<bool> test4() async* {}
Stream<bool> test5() => getStreamNull();
Stream<bool> test6() => getStreamBool();
Stream<bool> test7() async* {}
Stream<dynamic> getStreamNull() async* {}
bool test3() => getNull();
dynamic getNull() => null;
main() {}
test() async {}