@property
    def total_discount_incl_tax(self):
        discount = D('0.00')
        for line in self.lines.all():
            discount += line.discount_incl_tax
        return discount
Return the first non-blank row encountered from the current point in a CSV file.
dataset/ETHPy150Open django-oscar/django-oscar/src/oscar/apps/order/abstract_models.py/AbstractOrder.total_discount_incl_tax--crossover with--dataset/ETHPy150Open xesscorp/KiPart/kipart/common.py/get_nonblank_row