docs: public static <K extends Comparable<?>, V> ListMultimap<K, V> sortedArrayListMultimap()
      {
          Map<K, Collection<V>> map = Maps.newTreeMap();
          return Multimaps.newListMultimap(map, new Supplier<List<V>>() {
              @Override
              public List<V> get()
              {
                  return Lists.newArrayList();
              }
          });
      }