*     multiset} may or may not have {@code sampleElement} as a member.
   */
  public static <E extends @Nullable Object> void assertMultisetIsUnmodifiable(
      Multiset<E> multiset, E sampleElement) {
    Multiset<E> copy = LinkedHashMultiset.create(multiset);
    assertCollectionsAreEquivalent(multiset, copy);

        .containsExactly("c", "b", "a")
        .inOrder();
  }

  public void testMultisetWrites() {
    Multiset<String> multiset = ImmutableMultiset.of("a", "b", "a");
    UnmodifiableCollectionTests.assertMultisetIsUnmodifiable(multiset, "test");
  }

  public void testAsList() {
    ImmutableMultiset<String> multiset = ImmutableMultiset.of("a", "a", "b", "b", "b");
    ImmutableList<String> list = multiset.asList();

        .containsExactly("c", "b", "a")
        .inOrder();
  }

  public void testMultisetWrites() {
    Multiset<String> multiset = ImmutableMultiset.of("a", "b", "a");
    UnmodifiableCollectionTests.assertMultisetIsUnmodifiable(multiset, "test");
  }

  public void testAsList() {
    ImmutableMultiset<String> multiset = ImmutableMultiset.of("a", "a", "b", "b", "b");
    ImmutableList<String> list = multiset.asList();