@Test
  void empty() {
    ids(string.array.any().is("")).isEmpty();
    ids(string.array.any().isNot("")).isEmpty();
    ids(string.array.any().is("a")).isEmpty();
    ids(string.array.any().isNot("a")).isEmpty();
    ids(string.array.any().isEmpty()).isEmpty();
    ids(string.array.any().notEmpty()).isEmpty();
  }
Testing {@link IterableMatcher#any()} functionality of the matcher.
At least one element in sub-array matches.
criteria/common/test/org/immutables/criteria/typemodel/AnyTemplate.java