}

  enum SortedMultisetImpl implements CollectionsImplEnum {
    TreeMultisetImpl {
      @Override
      public <E extends Comparable<E>> SortedMultiset<E> create(Collection<E> contents) {
        return TreeMultiset.create(contents);
      }
    },
    ImmutableSortedMultisetImpl {
      @Override
      public <E extends Comparable<E>> SortedMultiset<E> create(Collection<E> contents) {

          ToIntFunction<? super T> countFunction) {
    checkNotNull(comparator);
    checkNotNull(elementFunction);
    checkNotNull(countFunction);
    return Collector.of(
        () -> TreeMultiset.create(comparator),
        (multiset, t) -> mapAndAdd(t, multiset, elementFunction, countFunction),
        (multiset1, multiset2) -> {
          multiset1.addAll(multiset2);
          return multiset1;
        },