code: def lounge_upgrade(self, email, password, release_id):
          
          schema = UpgradeSchema()
          resp = self.service.post(self.base+'lounge/upgrade/',
                                   json={'email': email, 'password': password, 'release': {'id': int(release_id)}})
          return self.service.decode(schema, resp)
docs: Download & install an upgrade from the CDRouter Support Lounge
          using your Support Lounge email & password. Please note that any
          running tests will be stopped.
  
          :param email: CDRouter Support Lounge email as a string.
          :param password: CDRouter Support Lounge password as a string.
          :param release_id: Release ID as an int.
          :return: :class:`system.Upgrade <system.Upgrade>` object
          :rtype: system.Upgrade