def starttls(self, tls):
        reply = self.custom_command(b'STARTTLS')
        if reply.code == '220':
            self.encrypt(tls)
        return reply
Tests the price of the discount within an order.
dataset/ETHPy150Open slimta/python-slimta/slimta/smtp/client.py/Client.starttls--crossover with--dataset/ETHPy150Open diefenbach/django-lfs/lfs/discounts/tests.py/DiscountTestCase2.test_order_discount_price