public Set<R> rowKeySet() {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.rowKeySet();
    }

    @Override
    public Map<R, Map<C, V>> rowMap() {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.rowMap();
    }

    private static final long serialVersionUID = 0;
  }

  @Override
  protected Table<String, Integer, Character> create(@Nullable Object... data) {

        }

        @Test
        @DisplayName("unwrap returns this for assignable type; otherwise throws ClassCastException")
        void testUnwrap() throws Exception {
            SID sid = new SID("S-1-5-21-1");
            // Happy path
            assertSame(sid, sid.unwrap(SID.class));
            assertSame(sid, sid.unwrap(Object.class));
            // Invalid unwrap

  }

  public void testRowKeySet() {
    assertEquals(ImmutableSet.of(), INSTANCE.rowKeySet());
  }

  public void testRowMap() {
    assertEquals(ImmutableMap.of(), INSTANCE.rowMap());
  }

  public void testValues() {
    assertTrue(INSTANCE.values().isEmpty());
  }

   */
  @Override
  public ImmutableMap<C, V> row(R rowKey) {
    checkNotNull(rowKey, "rowKey");
    return MoreObjects.firstNonNull((ImmutableMap<C, V>) rowMap().get(rowKey), ImmutableMap.of());
  }

  @Override
  public ImmutableSet<R> rowKeySet() {
    return rowMap().keySet();
  }

  /**
   * {@inheritDoc}
   *
   * <p>The value {@code Map<C, V>} instances in the returned map are {@link ImmutableMap} instances

func Errorf(format string, a ...any) error {
	e := fmt.Errorf(format, a...)
	ee := Error{}
	ee.msg = e.Error()
	ee.cause = errors.Unwrap(e)
	return ee
}

// Unwrap the internal error.
func (e Error) Unwrap() error { return e.cause }

// Error 'error' compatible method.
func (e Error) Error() string {
	if e.msg == "" {
		return "crypto: cause <nil>"
	}
	return e.msg
}

    return delegate().row(rowKey);
  }

  @Override
  public Set<R> rowKeySet() {
    return delegate().rowKeySet();
  }

  @Override
  public Map<R, Map<C, V>> rowMap() {
    return delegate().rowMap();
  }

  @Override
  public int size() {
    return delegate().size();
  }

  @Override
  public Collection<V> values() {
    return delegate().values();
  }

            buf.reset();
            buf.setIndex(8);
            buf.setLength(buf.dec_ndr_short());

            if (securityProvider != null) {
                securityProvider.unwrap(buf);
            }

            buf.setIndex(0);

            msg.decode_header(buf);

            off = 24;
            if (msg.ptype == 2 && !msg.isFlagSet(DCERPC_LAST_FRAG)) {

    }

    @Test
    @DisplayName("unwrap returns this for compatible types and throws otherwise")
    void unwrap_success_and_failure() {
        SmbPipeHandleImpl handle = newHandleWithBasicStubs(0, "\\\\pipe\\\\z");

        // Happy path: unwrap to interface and concrete type
        SmbPipeHandle unwrapped1 = handle.unwrap(SmbPipeHandle.class);
        SmbPipeHandleImpl unwrapped2 = handle.unwrap(SmbPipeHandleImpl.class);

	infReads, infWrites     atomic.Bool
	mu                      sync.Mutex
}

// Unwrap will unwrap the connection and remove the deadline if applied.
// If not a *DeadlineConn, the unmodified net.Conn is returned.
func Unwrap(c net.Conn) net.Conn {
	if dc, ok := c.(*DeadlineConn); ok {
		return dc.Conn
	}
	return c
}

// Sets read deadline

  }

  public void testRowKeySet() {
    assertEquals(ImmutableSet.of('a'), testTable.rowKeySet());
  }

  public void testRowMap() {
    assertEquals(ImmutableMap.of('a', ImmutableMap.of(1, "blah")), testTable.rowMap());
  }

  public void testEqualsObject() {
    new EqualsTester()
        .addEqualityGroup(testTable, HashBasedTable.create(testTable))
        .addEqualityGroup(ImmutableTable.of(), HashBasedTable.create())