if err != nil {
		return
	}
	err = en.WriteInt64(z.BlockSize)
	if err != nil {
		err = msgp.WrapError(err, "BlockSize")
		return
	}
	// write "Index"
	err = en.Append(0xa5, 0x49, 0x6e, 0x64, 0x65, 0x78)
	if err != nil {
		return
	}
	err = en.WriteInt(z.Index)
	if err != nil {
		err = msgp.WrapError(err, "Index")
		return
	}

public class AvTimestampTest {

    /**
     * Test constructor with raw bytes.
     */
    @Test
    public void testConstructorWithRawBytes() {
        byte[] rawBytes = new byte[8];
        SMBUtil.writeInt8(1234567890L, rawBytes, 0); // Example timestamp
        AvTimestamp avTimestamp = new AvTimestamp(rawBytes);

        assertNotNull(avTimestamp);
        assertEquals(AvPair.MsvAvTimestamp, avTimestamp.getType());

        @DisplayName("Should decode multiple ciphers correctly")
        void testDecodeMultipleCiphers() throws SMBProtocolDecodingException {
            SMBUtil.writeInt2(2, buffer, 0);
            SMBUtil.writeInt2(EncryptionNegotiateContext.CIPHER_AES128_CCM, buffer, 2);
            SMBUtil.writeInt2(EncryptionNegotiateContext.CIPHER_AES128_GCM, buffer, 4);

            EncryptionNegotiateContext context = new EncryptionNegotiateContext();

        byte[] buffer1 = new byte[256];
        byte[] buffer2 = new byte[256];

        // Prepare both buffers with valid structure
        SMBUtil.writeInt2(4, buffer1, 0);
        SMBUtil.writeInt2(0, buffer1, 2);
        SMBUtil.writeInt2(4, buffer2, 10);
        SMBUtil.writeInt2(0, buffer2, 12);

        // When
        int bytes1 = response.readBytesWireFormat(buffer1, 0);

        SMBUtil.writeInt8(indexNumber1, buffer1, 0);
        fileInternalInfo.decode(buffer1, 0, buffer1.length);
        assertEquals(indexNumber1, fileInternalInfo.getIndexNumber());

        // Second decode - should overwrite previous value
        byte[] buffer2 = new byte[8];
        long indexNumber2 = 0x2222222222222222L;
        SMBUtil.writeInt8(indexNumber2, buffer2, 0);

            // Given
            byte[] buffer = new byte[10];
            int bufferIndex = 2;
            SMBUtil.writeInt2(4, buffer, bufferIndex); // Write structure size = 4
            SMBUtil.writeInt2(0, buffer, bufferIndex + 2); // Reserved field

            // When
            int bytesRead = response.readBytesWireFormat(buffer, bufferIndex);

            // Then

        buf[1] = 0x66; // andxCommand
        ServerMessageBlock.writeInt2(50, buf, 3); // andxOffset
        ServerMessageBlock.writeInt2(20, buf, 9); // byteCount for main block

        // At offset 50, the implementation writes andx.wordCount (0) to buffer
        // Then reads byteCount at offset 51
        ServerMessageBlock.writeInt2(20, buf, 51);

        int n = block.readAndXWireFormat(buf, 0);

            return 0;
        }

        SMBUtil.writeInt2(NET_SHARE_ENUM, dst, dstIndex);
        dstIndex += 2;
        System.arraycopy(descr, 0, dst, dstIndex, descr.length);
        dstIndex += descr.length;
        SMBUtil.writeInt2(0x0001, dst, dstIndex);
        dstIndex += 2;
        SMBUtil.writeInt2(this.maxDataCount, dst, dstIndex);
        dstIndex += 2;

        return dstIndex - start;

      Multiset<E> multiset, ObjectOutputStream stream) throws IOException {
    int entryCount = multiset.entrySet().size();
    stream.writeInt(entryCount);
    for (Multiset.Entry<E> entry : multiset.entrySet()) {
      stream.writeObject(entry.getElement());
      stream.writeInt(entry.getCount());
    }
  }

  /**
   * Populates a multiset by reading an input stream, as part of deserialization. See {@link

    frame.writeByte(Http2.TYPE_SETTINGS)
    frame.writeByte(FLAG_NONE)
    frame.writeInt(0) // Settings are always on the connection stream 0.
    frame.writeShort(1) // SETTINGS_HEADER_TABLE_SIZE
    frame.writeInt(reducedTableSizeBytes)
    frame.writeShort(2) // SETTINGS_ENABLE_PUSH
    frame.writeInt(0)
    reader.nextFrame(
      requireSettings = false,
      object : BaseTestHandler() {