abstract int distinctElements();

  // Object methods

  /**
   * {@inheritDoc}
   *
   * <p>This implementation returns {@code true} if {@code object} is a multiset of the same size
   * and if, for each element, the two multisets have the same count.
   */
  @Override
  public final boolean equals(@Nullable Object object) {
    return Multisets.equalsImpl(this, object);
  }

  /**
   * {@inheritDoc}

  }

  @Override
  public int compareTo(Object object) {
    // This method is spec'd to throw CCE if object is of the wrong type
    LegacyComparable that = (LegacyComparable) object;
    return this.value.compareTo(that.value);
  }

  @Override
  public boolean equals(@Nullable Object object) {
    if (object instanceof LegacyComparable) {
      LegacyComparable that = (LegacyComparable) object;
      return this.value.equals(that.value);

TF_CAPI_EXPORT extern void TFE_ContextEndStep(TFE_Context* ctx);

#ifdef __cplusplus
} /* end extern "C" */
#endif

#ifdef __cplusplus
// A workaround to ease conversion to and from numpy objects and
// TFE_TensorHandle's.
//
// TODO(ashankar): Figure out an alternative scheme that precludes the need for
// these API-boundary breaking methods.
namespace tensorflow {
class Tensor;

    private final Table<R, C, V> delegate = HashBasedTable.create();
    private final Object mutex = new Object[0]; // something Serializable

    @Override
    public String toString() {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.toString();
    }

    @Override
    public boolean equals(@Nullable Object o) {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.equals(o);
    }

    T proxy =
        Reflection.newProxy(
            interfaceType,
            new AbstractInvocationHandler() {
              @Override
              protected Object handleInvocation(Object p, Method m, @Nullable Object[] args)
                  throws Throwable {
                throw exception;
              }
            });
    T wrapper = wrapperFunction.apply(proxy);
    try {

    class Transformer implements Function<Object, Object> {
      @SuppressWarnings("nullness:initialization.field.uninitialized")
      ListenableFuture<Object> output;

      @Override
      public Object apply(Object input) {
        output.cancel(false);
        throw new SomeError();
      }
    }
    Transformer transformer = new Transformer();
    SettableFuture<Object> input = SettableFuture.create();

    class Transformer implements Function<Object, Object> {
      @SuppressWarnings("nullness:initialization.field.uninitialized")
      ListenableFuture<Object> output;

      @Override
      public Object apply(Object input) {
        output.cancel(false);
        throw new SomeError();
      }
    }
    Transformer transformer = new Transformer();
    SettableFuture<Object> input = SettableFuture.create();

    SettableFuture<Object> async = SettableFuture.create();
    SettableFuture<Object> inner = SettableFuture.create();
    async.setFuture(inner);
    async.cancel(false);
    assertTrue(inner.isCancelled());
    assertFalse(inner.wasInterrupted());
    assertThrows(CancellationException.class, inner::get);
  }

  public void testCancel_beforeSet() throws Exception {
    SettableFuture<Object> async = SettableFuture.create();

  static class SuperClass {
    final List<Object> neitherOverriddenNorAnnotatedEvents = new ArrayList<>();
    final List<Object> overriddenInSubclassNowhereAnnotatedEvents = new ArrayList<>();
    final List<Object> overriddenAndAnnotatedInSubclassEvents = new ArrayList<>();

    public void neitherOverriddenNorAnnotated(Object o) {
      neitherOverriddenNorAnnotatedEvents.add(o);
    }

  private static final String TEST_VALUE = "test value";

  // Non-loading versions:
  private final Map<Object, Object> map = new MapMaker().makeMap(); // Returns ConcurrentHashMap
  private final Cache<Object, Object> cache = CacheBuilder.newBuilder().recordStats().build();
  private final Cache<Object, Object> cacheNoStats = CacheBuilder.newBuilder().build();

  @BeforeExperiment
  void setUp() {
    map.put(TEST_KEY, TEST_VALUE);