@Override
    protected int serializeItemsToByteList(List<Byte> byteList) throws TikaException, IOException {
        if (this.objectDeclarationList != null) {
            for (ObjectGroupObjectDeclare objectGroupObjectDeclare : this.objectDeclarationList) {
                byteList.addAll(objectGroupObjectDeclare.serializeToByteList());
            }
        }

        if (this.objectGroupObjectBLOBDataDeclarationList != null) {
            for (ObjectGroupObjectBLOBDataDeclaration objectGroupObjectBLOBDataDeclaration :
                    this.objectGroupObjectBLOBDataDeclarationList) {
                byteList.addAll(objectGroupObjectBLOBDataDeclaration.serializeToByteList());
            }
        }

        return 0;
    }
Used to convert the element into a byte List

@param byteList The Byte list
@return A constant value 0
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-microsoft-module/src/main/java/org/apache/tika/parser/microsoft/onenote/fsshttpb/streamobj/ObjectGroupDeclarations.java