private static void DeletePrivateip(VpcClient client)
        {
            var req = new DeletePrivateipRequest
            {
                PrivateipId = "efa0d2e2-314f-44f2-99f6-ecfeaab3ba9d"
            };

            try
            {
                DeletePrivateipResponse resp = client.DeletePrivateip(req);
                Console.WriteLine(resp.HttpStatusCode);
            }
            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);
            }
        }