def METHOD_NAME(self, http_context, manager_id=None, service_id=None):
    """
    Retrieve the service informations for one specified service in one
    specified manager.
    :param http_context: HttpContext
    :type http_context: HttpContext
    :param manager_id: Manager id, e.g. systemd
    :type manager_id: string
    :param service_id: Service id, e.g. ssh
    :type service_id: string
    :return: Service informations
    :rtype: dict
    """
    return self.managers[manager_id].get_status(service_id)