record Percent(int value) { compact ctor rejects value < 0 or > 100 }
Instancio.of(Percent.class).withSeed(1L), 20 instances, default ints 1..10000:
  no exception thrown; null elements: 20 of 20
with generate(all(int.class), ints().range(0, 100)):
  null elements: 0 of 20, first values: [Percent[value=93], Percent[value=22], Percent[value=75]]