/// <summary>Snippet for DiagnoseClusterAsync</summary>
        public async Task DiagnoseClusterAsync()
        {
            // Snippet: DiagnoseClusterAsync(string, string, string, CallSettings)
            // Additional: DiagnoseClusterAsync(string, string, string, CancellationToken)
            // Create client
            ClusterControllerClient clusterControllerClient = await ClusterControllerClient.CreateAsync();

            // Initialize request argument(s)
            string projectId   = "";
            string region      = "";
            string clusterName = "";
            // Make the request
            Operation <DiagnoseClusterResults, ClusterOperationMetadata> response = await clusterControllerClient.DiagnoseClusterAsync(projectId, region, clusterName);

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

            // Retrieve the operation result
            DiagnoseClusterResults 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 <DiagnoseClusterResults, ClusterOperationMetadata> retrievedResponse = await clusterControllerClient.PollOnceDiagnoseClusterAsync(operationName);

            // Check if the retrieved long-running operation has completed
            if (retrievedResponse.IsCompleted)
            {
                // If it has completed, then access the result
                DiagnoseClusterResults retrievedResult = retrievedResponse.Result;
            }
            // End snippet
        }
        /// <summary>Snippet for DiagnoseCluster</summary>
        public void DiagnoseClusterRequestObject()
        {
            // Snippet: DiagnoseCluster(DiagnoseClusterRequest, CallSettings)
            // Create client
            ClusterControllerClient clusterControllerClient = ClusterControllerClient.Create();
            // Initialize request argument(s)
            DiagnoseClusterRequest request = new DiagnoseClusterRequest
            {
                ProjectId   = "",
                ClusterName = "",
                Region      = "",
            };
            // Make the request
            Operation <DiagnoseClusterResults, ClusterOperationMetadata> response = clusterControllerClient.DiagnoseCluster(request);

            // Poll until the returned long-running operation is complete
            Operation <DiagnoseClusterResults, ClusterOperationMetadata> completedResponse = response.PollUntilCompleted();
            // Retrieve the operation result
            DiagnoseClusterResults 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 <DiagnoseClusterResults, ClusterOperationMetadata> retrievedResponse = clusterControllerClient.PollOnceDiagnoseCluster(operationName);

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