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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def handle_error(self, error, url):
        '''Try to resolve the given error, which should be a response
        to the given URL, by discharging any macaroon contained in
        it. That is, if error.code is ERR_DISCHARGE_REQUIRED
        then it will try to discharge err.info.macaroon. If the discharge
        succeeds, the discharged macaroon will be saved to the client's cookie
        jar, otherwise an exception will be raised.
        '''
        if error.info is None or error.info.macaroon is None:
            raise BakeryException('unable to read info in discharge error '
                                  'response')

        discharges = bakery.discharge_all(
            error.info.macaroon,
            self.acquire_discharge,
            self.key,
        )
        macaroons = '[' + ','.join(map(utils.macaroon_to_json_string,
                                       discharges)) + ']'
        all_macaroons = base64.urlsafe_b64encode(utils.to_bytes(macaroons))

        full_path = urljoin(url, error.info.macaroon_path)
        if error.info.cookie_name_suffix is not None:
            name = 'macaroon-' + error.info.cookie_name_suffix
        else:
            name = 'macaroon-auth'
        expires = checkers.macaroons_expiry_time(checkers.Namespace(), discharges)
        self.cookies.set_cookie(utils.cookie(
            name=name,
            value=all_macaroons.decode('ascii'),
            url=full_path,
            expires=expires,
        ))