code: public static <T> DecomposableMatchBuilder1<Optional<T>, T> some(MatchesAny<T> t) {
      List<Matcher<Object>> matchers = Lists.of(ArgumentMatchers.any());
      return new DecomposableMatchBuilder1<Optional<T>, T>(
          matchers, 0, new OptionalFieldExtractor<>());
    }
docs: Matches a non-empty {@link Optional}.
  
  <p>If matched, the {@code t} value is extracted.