!7

p {
  print("Test 1");
  Either<O, Thread> e = evalWithTimeout(1500, f f);
  assertEqualsVerbose("yo!", e.a());
  
  print("Test 2");
  e = evalWithTimeout(500, f f);
  assertTrue(e.isB());
  print("OK");
}

static S f() {
  sleep(1000);
  ret print("yo!");
}