Retrieve a stored ServiceConfig from the keychain or exception

        :param name: the service name to retrieve
        :type name: str

        :rtype ServiceConfig
        :return the configured Service

def get_service(self, name):
        """ Retrieve a stored ServiceConfig from the keychain or exception

        :param name: the service name to retrieve
        :type name: str

        :rtype ServiceConfig
        :return the configured Service
        """
        self._convert_connected_app()
        if not self.project_config.services or name not in self.project_config.services:
            self._raise_service_not_valid(name)
        if name not in self.services:
            self._raise_service_not_configured(name)

        return self._get_service(name)