TreeSet<E> set = Sets.newTreeSet();
    set.add(freshElement);
    return set;
  }

  @Generates
  static <E extends Comparable<? super E>> ImmutableSortedSet<E> generateImmutableSortedSet(
      E freshElement) {
    return ImmutableSortedSet.of(freshElement);
  }

  @Generates
  static <E> Multiset<E> generateMultiset(@Nullable E freshElement) {

    TreeSet<E> set = Sets.newTreeSet();
    set.add(freshElement);
    return set;
  }

  @Generates
  static <E extends Comparable<? super E>> ImmutableSortedSet<E> generateImmutableSortedSet(
      E freshElement) {
    return ImmutableSortedSet.of(freshElement);
  }

  @Generates
  static <E> Multiset<E> generateMultiset(@Nullable E freshElement) {