return
	}
	// write "VersionID"
	err = en.Append(0xa9, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x49, 0x44)
	if err != nil {
		return
	}
	err = en.WriteString(z.VersionID)
	if err != nil {
		err = msgp.WrapError(err, "VersionID")
		return
	}
	// write "Versions"
	err = en.Append(0xa8, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x73)
	if err != nil {
		return
	}

    static final int FLAGS2_EXTENDED_SECURITY_NEGOTIATION = 0x0800;
    static final int FLAGS2_RESOLVE_PATHS_IN_DFS = 0x1000;
    static final int FLAGS2_PERMIT_READ_IF_EXECUTE_PERM = 0x2000;
    static final int FLAGS2_STATUS32 = 0x4000;
    static final int FLAGS2_UNICODE = 0x8000;

    static final int CAP_NONE = 0x0000;
    static final int CAP_RAW_MODE = 0x0001;
    static final int CAP_MPX_MODE = 0x0002;
    static final int CAP_UNICODE = 0x0004;

    private static final int SHARING_DENY_READ_EXECUTE       = 0x30;
    private static final int SHARING_DENY_NONE               = 0x40;

    private static final int DO_NOT_CACHE  = 0x1000; // bit 12
    private static final int WRITE_THROUGH = 0x4000; // bit 14

    private static final int OPEN_FN_CREATE = 0x10;
    private static final int OPEN_FN_FAIL_IF_EXISTS = 0x00;

    val codepointDelta: Int,
  ) : MappedRange {
    private val absoluteDelta = abs(codepointDelta)

    val b1: Int
      get() =
        when {
          codepointDelta < 0 -> 0x40 or (absoluteDelta shr 14)
          codepointDelta > 0 -> 0x50 or (absoluteDelta shr 14)
          else -> error("Unexpected codepointDelta of 0")
        }

    val b2: Int
      get() = absoluteDelta shr 7 and 0x7f

    val b3: Int

    /**
     * 
     */
    public static final int FILE_NOTIFY_CHANGE_STREAM_SIZE = 0x400;
    /**
     * 
     */
    public static final int FILE_NOTIFY_CHANGE_STREAM_WRITE = 0x800;

    private final byte[] fileId;
    private int outputBufferLength;
    private int notifyFlags;
    private int completionFilter;


    /**
     * @param config

    static final int SHARING_DENY_WRITE = 0x20;
    static final int SHARING_DENY_READ_EXECUTE = 0x30;
    static final int SHARING_DENY_NONE = 0x40;

    static final int DO_NOT_CACHE = 0x1000; // bit 12
    static final int WRITE_THROUGH = 0x4000; // bit 14

    static final int OPEN_FN_CREATE = 0x10;
    static final int OPEN_FN_FAIL_IF_EXISTS = 0x00;
    static final int OPEN_FN_OPEN = 0x01;

		o = msgp.AppendString(o, za0001)
		o = msgp.AppendString(o, za0002)
	}
	// string "Value"
	o = append(o, 0xa5, 0x56, 0x61, 0x6c, 0x75, 0x65)
	o = msgp.AppendFloat64(o, z.Value)
	// string "VariableLabels"
	o = append(o, 0xae, 0x56, 0x61, 0x72, 0x69, 0x61, 0x62, 0x6c, 0x65, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x73)
	o = msgp.AppendMapHeader(o, uint32(len(z.VariableLabels)))

  @JvmField
  val CONNECTION_PREFACE = "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n".encodeUtf8()

  /** The initial max frame size, applied independently writing to, or reading from the peer. */
  const val INITIAL_MAX_FRAME_SIZE = 0x4000 // 16384

  const val TYPE_DATA = 0x0
  const val TYPE_HEADERS = 0x1
  const val TYPE_PRIORITY = 0x2
  const val TYPE_RST_STREAM = 0x3
  const val TYPE_SETTINGS = 0x4
  const val TYPE_PUSH_PROMISE = 0x5

    static final int FLAGS2_RESOLVE_PATHS_IN_DFS          = 0x1000;
    static final int FLAGS2_PERMIT_READ_IF_EXECUTE_PERM   = 0x2000;
    static final int FLAGS2_STATUS32                      = 0x4000;
    static final int FLAGS2_UNICODE                       = 0x8000;

    static final int CAP_NONE             = 0x0000;
    static final int CAP_RAW_MODE         = 0x0001;
    static final int CAP_MPX_MODE         = 0x0002;

                (byte) 0x67, (byte) 0x45, (byte) 0x23, (byte) 0x01
              },
              0x89abcdef,
              0x0123456789abcdefL,
              "efcdab8967452301"),
          new ExpectedHashCode(
              new byte[] {
                (byte) 0xef, (byte) 0xcd, (byte) 0xab, (byte) 0x89,
                (byte) 0x67, (byte) 0x45, (byte) 0x23,