public boolean contains(@Nullable Object target) {
      return indexOf(target) >= 0;
    }

    @Override
    public int indexOf(@Nullable Object target) {
      return target instanceof Double ? parent.indexOf((Double) target) : -1;
    }

    @Override
    public int lastIndexOf(@Nullable Object target) {
      return target instanceof Double ? parent.lastIndexOf((Double) target) : -1;
    }

    @Override

    @Override
    public boolean contains(@Nullable Object target) {
      return indexOf(target) >= 0;
    }

    @Override
    public int indexOf(@Nullable Object target) {
      return target instanceof Integer ? parent.indexOf((Integer) target) : -1;
    }

    @Override
    public int lastIndexOf(@Nullable Object target) {
      return target instanceof Integer ? parent.lastIndexOf((Integer) target) : -1;
    }

 *
 * <p>Unlike {@code java.util.HashSet}, iteration is only proportional to the actual {@code size()},
 * which is optimal, and <i>not</i> the size of the internal hashtable, which could be much larger
 * than {@code size()}. Furthermore, this structure only depends on a fixed number of arrays; {@code
 * add(x)} operations <i>do not</i> create objects for the garbage collector to deal with, and for

  static final Object NULL = new Object();

  /*
   * Despite declaring this field in AbstractFutureState, we still use the logger for
   * AbstractFuture: Users may have tests or log configuration that expects that to be the logger
   * used for exceptions from listeners, as it's been in the past.
   */
  static final LazyLogger log = new LazyLogger(AbstractFuture.class);

  Luckily for Alice, the little magic bottle had now had its full
effect, and she grew no larger:  still it was very uncomfortable,
and, as there seemed to be no sort of chance of her ever getting
out of the room again, no wonder she felt unhappy.

  `It was much pleasanter at home,' thought poor Alice, `when one
wasn't always growing larger and smaller, and being ordered about
by mice and rabbits.  I almost wish I hadn't gone down that

                "1000, 500, 600, 8, 512", // Typical configuration
                "1000, 500, 600, 64, 512", // Large allocation units
                "1000, 500, 600, 8, 4096", // 4K sectors
                "1000, 500, 600, 16, 4096", // Large sectors and allocation
                "1000, 0, 0, 8, 512", // No free space
                "1000, 1000, 1000, 8, 512" // All space free
        })

    unexpected NPN response is received and OkHttp crashes.
 *  Fix: Write continuation frames when HPACK data is larger than 16383 bytes.
 *  Fix: Don't drop uncaught exceptions thrown in async calls.
 *  Fix: Throw an exception eagerly when a request body is not legal. Previously
    we ignored the problem at request-building time, only to crash later with a
    `NullPointerException`.

   * servers, it should be the agreed-upon extensions immediately.
   */
  private var extensions: WebSocketExtensions?,
  /** If compression is negotiated, outbound messages of this size and larger will be compressed. */
  private var minimumDeflateSize: Long,
  private val webSocketCloseTimeout: Long,
) : WebSocket,
  WebSocketReader.FrameCallback,
  Lockable {
  private val key: String

   * Returns {@code false} if {@code n} is zero, one, or a composite number (one which <i>can</i> be
   * factored into smaller positive integers).
   *
   * <p>To test larger numbers, use {@link LongMath#isPrime} or {@link BigInteger#isProbablePrime}.
   *
   * @throws IllegalArgumentException if {@code n} is negative
   * @since 20.0
   */
  @GwtIncompatible // TODO

		return nil
	}
}

// Value arithmetic functions: we do not expose them outside the
// module. All arithmetic works only on numeric values with automatic
// promotion to the "larger" type that can represent the value. TODO:
// Add support for large number arithmetic.

// Supported arithmetic operators
const (
	opPlus     = "+"
	opMinus    = "-"
	opDivide   = "/"
	opMultiply = "*"
	opModulo   = "%"
)