def __init__(self, fields=None):

        super().__init__(fields)
        self['kind'] = 'audio'
Entry point for pre-serialization processing, for example to finalize
dataset/ETHPy150Open heiskr/sagefy/server/models/cards/audio_card.py/AudioCard.__init__--crossover with--dataset/ETHPy150Open python-openxml/python-docx/docx/opc/part.py/Part.before_marshal