def save(self):
        unique_id = uuid4().hex[:20]
        payment = self._client._customer.create_saved_payment(
            self.credit_card, address=self.address)
        profile_id, payment_ids = self._client._customer \
            .create_saved_profile(unique_id, [payment], email=self.email)
        uid = '{0}|{1}'.format(profile_id, payment_ids[0])
        return self._client.saved_card(uid)
Saves the credit card on Authorize.net's servers so you can create
dataset/ETHPy150Open drewisme/authorizesauce/authorize/client.py/AuthorizeCreditCard.save