/// <summary>Snippet for UndeleteServiceAsync</summary>
        /// <remarks>
        /// This snippet has been automatically generated for illustrative purposes only.
        /// It may require modifications to work in your environment.
        /// </remarks>
        public async Task UndeleteServiceAsync()
        {
            // Create client
            ServiceManagerClient serviceManagerClient = await ServiceManagerClient.CreateAsync();

            // Initialize request argument(s)
            string serviceName = "";
            // Make the request
            Operation <UndeleteServiceResponse, OperationMetadata> response = await serviceManagerClient.UndeleteServiceAsync(serviceName);

            // Poll until the returned long-running operation is complete
            Operation <UndeleteServiceResponse, OperationMetadata> completedResponse = await response.PollUntilCompletedAsync();

            // Retrieve the operation result
            UndeleteServiceResponse result = completedResponse.Result;

            // Or get the name of the operation
            string operationName = response.Name;
            // This name can be stored, then the long-running operation retrieved later by name
            Operation <UndeleteServiceResponse, OperationMetadata> retrievedResponse = await serviceManagerClient.PollOnceUndeleteServiceAsync(operationName);

            // Check if the retrieved long-running operation has completed
            if (retrievedResponse.IsCompleted)
            {
                // If it has completed, then access the result
                UndeleteServiceResponse retrievedResult = retrievedResponse.Result;
            }
        }