def sticker_templates():
    """
    It returns the registered stickers in the system.
    :return: a DisplayList object
    """
    voc = DisplayList()
    stickers = getStickerTemplates()
    for sticker in stickers:
        voc.add(sticker.get('id'), sticker.get('title'))
    if voc.index == 0:
        logger.warning('Sampletype: getStickerTemplates is empty!')
    return voc
It returns the registered stickers in the system.
    :return: a DisplayList object