class CreditCard:
    """A consumer credit card."""

    def init (self, customer, bank, acnt, limit, balance=0):
        """Create a new credit card instance.
        
        The initial balance is zero.
        
        customer    the name of the customer (e.g., <NAME> )
        bank        the name of the bank (e.g., California Savings )
        acnt        the acount identifier (e.g., 5391 0375 9387 5309 )
        limit       credit limit (measured in dollars)
        """
        self._customer = customer
        self._bank = bank
        self._account = acnt
        self._limit = limit
        self._balance = balance

class CreditCard:
    """A consumer credit card."""

    def init (self, customer, bank, acnt, limit, balance=0):
        """Create a new credit card instance.
        
        The initial balance is zero.
        
        customer    the name of the customer (e.g., <NAME> )
        bank        the name of the bank (e.g., California Savings )
        acnt        the acount identifier (e.g., 5391 0375 9387 5309 )
        limit       credit limit (measured in dollars)
        """
        self._customer = customer
        self._bank = bank
        self._account = acnt
        self._limit = limit
        self._balance = balance

A consumer credit card. Create a new credit card instance.                  The initial balance is zero.                  customer    the name of the customer (e.g., <NAME> )         bank        the name of the bank (e.g., California Savings )         acnt        the acount identifier (e.g., 5391 0375 9387 5309 )         limit       credit limit (measured in dollars)