static O evalWithTimeoutOrException(fO f, int timeoutMS) {
  ret evalWithTimeoutOrException(timeoutMS, f);
}

static O evalWithTimeoutOrException(int timeoutMS, fO f) {
  ret eitherAOpt(evalWithTimeout(timeoutMS, f));
}

static O evalWithTimeoutOrException(double timeoutSeconds, fO f) {
  ret eitherAOpt(evalWithTimeout(timeoutSeconds, f));
}

static <A> A evalWithTimeoutOrException(int timeoutMS, F0<A> f) {
  Either<A, Thread> e = evalWithTimeout(timeoutMS, f);
  if (e.isA()) ret e.a;
  fail("Timeout after " + timeoutMS + " ms");
}

static <A> A evalWithTimeoutOrException(double timeoutSeconds, F0<A> f) {
  ret evalWithTimeoutOrException(toMS(timeoutSeconds), f);
}