import 'dart:async';

void voidValue = null;
void main() {}
FutureOr<FutureOr<void>> test1() {}
FutureOr<FutureOr<void>> test2() {}
FutureOr<FutureOr<void>> test3() {}
FutureOr<FutureOr<void>> test4() {}
FutureOr<FutureOr<void>> test5() {}
FutureOr<FutureOr<void>> test6() {}
FutureOr<FutureOr<void>> test() {}