def balance(self):
        """
        Access the balance

        :returns: twilio.rest.api.v2010.account.balance.BalanceList
        :rtype: twilio.rest.api.v2010.account.balance.BalanceList
        """
        if self._balance is None:
            self._balance = BalanceList(self._version, account_sid=self._solution['sid'], )
        return self._balance
def balance ( self ) : if self . _balance is None : self . _balance = BalanceList ( self . _version , account_sid = self . _solution [ 'sid' ] , ) return self . _balance
Access the balance

        :returns: twilio.rest.api.v2010.account.balance.BalanceList
        :rtype: twilio.rest.api.v2010.account.balance.BalanceList