@Override
    protected int serializeItemsToByteList(List<Byte> byteList) {
        byteList.addAll(
                ByteUtil.toListOfByte(this.guid.toString().getBytes(StandardCharsets.UTF_8)));
        return 16;
    }
Used to convert the element into a byte List.

@param byteList A Byte list
@return A constant value 16
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-microsoft-module/src/main/java/org/apache/tika/parser/microsoft/onenote/fsshttpb/streamobj/StorageManifestSchemaGUID.java