docs: public static <T> T load(
        Class<T> klass,
        Iterable<Class<?>> hardcoded,
        ClassLoader cl,
        PriorityAccessor<T> priorityAccessor) {
      List<T> candidates = loadAll(klass, hardcoded, cl, priorityAccessor);
      if (candidates.isEmpty()) {
        return null;
      }
      return candidates.get(0);
    }