@property
    def masked_number(self):
        return self.bin + "******" + self.last_4
Exit OP2 and clean up
dataset/ETHPy150Open braintree/braintree_python/braintree/credit_card.py/CreditCard.masked_number--crossover with--dataset/ETHPy150Open OP2/PyOP2/pyop2/op2.py/exit