@lazyproperty
    def numbering_part(self):
        try:
            return self.part_related_by(RT.NUMBERING)
        except KeyError:
            numbering_part = NumberingPart.new()
            self.relate_to(numbering_part, RT.NUMBERING)
            return numbering_part
See :func:`burpui.misc.backend.interface.BUIbackend.get_client_version`
dataset/ETHPy150Open python-openxml/python-docx/docx/parts/document.py/DocumentPart.numbering_part--crossover with--dataset/ETHPy150Open ziirish/burp-ui/burpui/misc/backend/burp1.py/Burp.get_client_version