static <A> A evalWithTimeoutOrTypedException(int timeoutMS, IF0<A> f) {
  Either<O, Thread> e = evalWithTimeout(timeoutMS, f);
  if (e.isA()) ret (A) e.a();
  throw TimeoutException(
    timeoutMS,
    f,
    thread);
}

static <A> A evalWithTimeoutOrTypedException(double timeoutSeconds, IF0<A> f) {
  ret evalWithTimeoutOrTypedException(toMS_int(timeoutSeconds), f);
}