def get_value(self):
        if self.selected_item is None:
            return None
        return self.selected_item.get_value()
Add a voucher to the basket.
dataset/ETHPy150Open dddomodossola/remi/remi/gui.py/ListView.get_value--crossover with--dataset/ETHPy150Open django-oscar/django-oscar-api/oscarapi/views/basket.py/add_voucher