private static void KeystoneListPermissions(IamClient iamClient)
        {
            var keystoneListPermissionsRequest = new KeystoneListPermissionsRequest()
            {
                Name = ""
            };

            try
            {
                var keystoneListPermissionsResponse = iamClient.KeystoneListPermissions(keystoneListPermissionsRequest);
                foreach (var role in keystoneListPermissionsResponse.Roles)
                {
                    Console.WriteLine(JsonConvert.SerializeObject(role));
                }
            }
            catch (RequestTimeoutException requestTimeoutException)
            {
                Console.WriteLine(requestTimeoutException.ErrorMessage);
            }
            catch (ServiceResponseException clientRequestException)
            {
                Console.WriteLine(clientRequestException.HttpStatusCode);
                Console.WriteLine(clientRequestException.ErrorCode);
                Console.WriteLine(clientRequestException.ErrorMsg);
            }
            catch (ConnectionException connectionException)
            {
                Console.WriteLine(connectionException.ErrorMessage);
            }
        }
        /// <summary>
        /// 查询权限列表
        /// </summary>
        public KeystoneListPermissionsResponse KeystoneListPermissions(KeystoneListPermissionsRequest keystoneListPermissionsRequest)
        {
            Dictionary <string, string> urlParam = new Dictionary <string, string>();
            string      urlPath  = HttpUtils.AddUrlPath("/v3/roles", urlParam);
            SdkRequest  request  = HttpUtils.InitSdkRequest(urlPath, keystoneListPermissionsRequest);
            SdkResponse response = DoHttpRequest("GET", request);

            return(JsonUtils.DeSerialize <KeystoneListPermissionsResponse>(response));
        }