/// <summary>Snippet for Update</summary>
        public void Update()
        {
            // Snippet: Update(string, string, string, HealthCheck, CallSettings)
            // Create client
            RegionHealthChecksClient regionHealthChecksClient = RegionHealthChecksClient.Create();
            // Initialize request argument(s)
            string      project             = "";
            string      region              = "";
            string      healthCheck         = "";
            HealthCheck healthCheckResource = new HealthCheck();
            // Make the request
            lro::Operation <Operation, Operation> response = regionHealthChecksClient.Update(project, region, healthCheck, healthCheckResource);

            // Poll until the returned long-running operation is complete
            lro::Operation <Operation, Operation> completedResponse = response.PollUntilCompleted();
            // Retrieve the operation result
            Operation 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
            lro::Operation <Operation, Operation> retrievedResponse = regionHealthChecksClient.PollOnceUpdate(operationName);

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