Compute Engine v1 API - Class PreviewFeaturesClient (3.18.0)

public abstract class PreviewFeaturesClient

Reference documentation and code samples for the Compute Engine v1 API class PreviewFeaturesClient.

PreviewFeatures client wrapper, for convenient use.

Inheritance

object > PreviewFeaturesClient

Namespace

Google.Cloud.Compute.V1

Assembly

Google.Cloud.Compute.V1.dll

Remarks

The PreviewFeatures API.

Properties

DefaultEndpoint

public static string DefaultEndpoint { get; }

The default endpoint for the PreviewFeatures service, which is a host of "compute.googleapis.com" and a port of 443.

Property Value
Type Description
string

DefaultScopes

public static IReadOnlyList<string> DefaultScopes { get; }

The default PreviewFeatures scopes.

Property Value
Type Description
IReadOnlyListstring
Remarks

GrpcClient

public virtual PreviewFeatures.PreviewFeaturesClient GrpcClient { get; }

The underlying gRPC PreviewFeatures client

Property Value
Type Description
PreviewFeaturesPreviewFeaturesClient

ServiceMetadata

public static ServiceMetadata ServiceMetadata { get; }

The service metadata associated with this client type.

Property Value
Type Description
ServiceMetadata

UpdateOperationsClient

public virtual OperationsClient UpdateOperationsClient { get; }

The long-running operations client for Update.

Property Value
Type Description
OperationsClient

Methods

Create()

public static PreviewFeaturesClient Create()

Synchronously creates a PreviewFeaturesClient using the default credentials, endpoint and settings. To specify custom credentials or other settings, use PreviewFeaturesClientBuilder.

Returns
Type Description
PreviewFeaturesClient

The created PreviewFeaturesClient.

CreateAsync(CancellationToken)

public static Task<PreviewFeaturesClient> CreateAsync(CancellationToken cancellationToken = default)

Asynchronously creates a PreviewFeaturesClient using the default credentials, endpoint and settings. To specify custom credentials or other settings, use PreviewFeaturesClientBuilder.

Parameter
Name Description
cancellationToken CancellationToken

The CancellationToken to use while creating the client.

Returns
Type Description
TaskPreviewFeaturesClient

The task representing the created PreviewFeaturesClient.

Get(GetPreviewFeatureRequest, CallSettings)

public virtual PreviewFeature Get(GetPreviewFeatureRequest request, CallSettings callSettings = null)

Returns the details of the given PreviewFeature.

Parameters
Name Description
request GetPreviewFeatureRequest

The request object containing all of the parameters for the API call.

callSettings CallSettings

If not null, applies overrides to this RPC call.

Returns
Type Description
PreviewFeature

The RPC response.

Example
// Create client
PreviewFeaturesClient previewFeaturesClient = PreviewFeaturesClient.Create();
// Initialize request argument(s)
GetPreviewFeatureRequest request = new GetPreviewFeatureRequest
{
    Project = "",
    PreviewFeature = "",
};
// Make the request
PreviewFeature response = previewFeaturesClient.Get(request);

Get(string, string, CallSettings)

public virtual PreviewFeature Get(string project, string previewFeature, CallSettings callSettings = null)

Returns the details of the given PreviewFeature.

Parameters
Name Description
project string

Project ID for this request.

previewFeature string

Name of the PreviewFeature for this request.

callSettings CallSettings

If not null, applies overrides to this RPC call.

Returns
Type Description
PreviewFeature

The RPC response.

Example
// Create client
PreviewFeaturesClient previewFeaturesClient = PreviewFeaturesClient.Create();
// Initialize request argument(s)
string project = "";
string previewFeature = "";
// Make the request
PreviewFeature response = previewFeaturesClient.Get(project, previewFeature);

GetAsync(GetPreviewFeatureRequest, CallSettings)

public virtual Task<PreviewFeature> GetAsync(GetPreviewFeatureRequest request, CallSettings callSettings = null)

Returns the details of the given PreviewFeature.

Parameters
Name Description
request GetPreviewFeatureRequest

The request object containing all of the parameters for the API call.

callSettings CallSettings

If not null, applies overrides to this RPC call.

Returns
Type Description
TaskPreviewFeature

A Task containing the RPC response.

Example
// Create client
PreviewFeaturesClient previewFeaturesClient = await PreviewFeaturesClient.CreateAsync();
// Initialize request argument(s)
GetPreviewFeatureRequest request = new GetPreviewFeatureRequest
{
    Project = "",
    PreviewFeature = "",
};
// Make the request
PreviewFeature response = await previewFeaturesClient.GetAsync(request);

GetAsync(GetPreviewFeatureRequest, CancellationToken)

public virtual Task<PreviewFeature> GetAsync(GetPreviewFeatureRequest request, CancellationToken cancellationToken)

Returns the details of the given PreviewFeature.

Parameters
Name Description
request GetPreviewFeatureRequest

The request object containing all of the parameters for the API call.

cancellationToken CancellationToken

A CancellationToken to use for this RPC.

Returns
Type Description
TaskPreviewFeature

A Task containing the RPC response.

Example
// Create client
PreviewFeaturesClient previewFeaturesClient = await PreviewFeaturesClient.CreateAsync();
// Initialize request argument(s)
GetPreviewFeatureRequest request = new GetPreviewFeatureRequest
{
    Project = "",
    PreviewFeature = "",
};
// Make the request
PreviewFeature response = await previewFeaturesClient.GetAsync(request);

GetAsync(string, string, CallSettings)

public virtual Task<PreviewFeature> GetAsync(string project, string previewFeature, CallSettings callSettings = null)

Returns the details of the given PreviewFeature.

Parameters
Name Description
project string

Project ID for this request.

previewFeature string

Name of the PreviewFeature for this request.

callSettings CallSettings

If not null, applies overrides to this RPC call.

Returns
Type Description
TaskPreviewFeature

A Task containing the RPC response.

Example
// Create client
PreviewFeaturesClient previewFeaturesClient = await PreviewFeaturesClient.CreateAsync();
// Initialize request argument(s)
string project = "";
string previewFeature = "";
// Make the request
PreviewFeature response = await previewFeaturesClient.GetAsync(project, previewFeature);

GetAsync(string, string, CancellationToken)

public virtual Task<PreviewFeature> GetAsync(string project, string previewFeature, CancellationToken cancellationToken)

Returns the details of the given PreviewFeature.

Parameters
Name Description
project string

Project ID for this request.

previewFeature string

Name of the PreviewFeature for this request.

cancellationToken CancellationToken

A CancellationToken to use for this RPC.

Returns
Type Description
TaskPreviewFeature

A Task containing the RPC response.

Example
// Create client
PreviewFeaturesClient previewFeaturesClient = await PreviewFeaturesClient.CreateAsync();
// Initialize request argument(s)
string project = "";
string previewFeature = "";
// Make the request
PreviewFeature response = await previewFeaturesClient.GetAsync(project, previewFeature);

List(ListPreviewFeaturesRequest, CallSettings)

public virtual PagedEnumerable<PreviewFeatureList, PreviewFeature> List(ListPreviewFeaturesRequest request, CallSettings callSettings = null)

Returns the details of the given PreviewFeature.

Parameters
Name Description
request ListPreviewFeaturesRequest

The request object containing all of the parameters for the API call.

callSettings CallSettings

If not null, applies overrides to this RPC call.

Returns
Type Description
PagedEnumerablePreviewFeatureListPreviewFeature

A pageable sequence of PreviewFeature resources.

Example
// Create client
PreviewFeaturesClient previewFeaturesClient = PreviewFeaturesClient.Create();
// Initialize request argument(s)
ListPreviewFeaturesRequest request = new ListPreviewFeaturesRequest
{
    OrderBy = "",
    Project = "",
    Filter = "",
    ReturnPartialSuccess = false,
};
// Make the request
PagedEnumerable<PreviewFeatureList, PreviewFeature> response = previewFeaturesClient.List(request);

// Iterate over all response items, lazily performing RPCs as required
foreach (PreviewFeature item in response)
{
    // Do something with each item
    Console.WriteLine(item);
}

// Or iterate over pages (of server-defined size), performing one RPC per page
foreach (PreviewFeatureList page in response.AsRawResponses())
{
    // Do something with each page of items
    Console.WriteLine("A page of results:");
    foreach (PreviewFeature item in page)
    {
        // Do something with each item
        Console.WriteLine(item);
    }
}

// Or retrieve a single page of known size (unless it's the final page), performing as many RPCs as required
int pageSize = 10;
Page<PreviewFeature> singlePage = response.ReadPage(pageSize);
// Do something with the page of items
Console.WriteLine($"A page of {pageSize} results (unless it's the final page):");
foreach (PreviewFeature item in singlePage)
{
    // Do something with each item
    Console.WriteLine(item);
}
// Store the pageToken, for when the next page is required.
string nextPageToken = singlePage.NextPageToken;

List(string, string, int?, CallSettings)

public virtual PagedEnumerable<PreviewFeatureList, PreviewFeature> List(string project, string pageToken = null, int? pageSize = null, CallSettings callSettings = null)

Returns the details of the given PreviewFeature.

Parameters
Name Description
project string

Project ID for this request.

pageToken string

The token returned from the previous request. A value of null or an empty string retrieves the first page.

pageSize int

The size of page to request. The response will not be larger than this, but may be smaller. A value of null or 0 uses a server-defined page size.

callSettings CallSettings

If not null, applies overrides to this RPC call.

Returns
Type Description
PagedEnumerablePreviewFeatureListPreviewFeature

A pageable sequence of PreviewFeature resources.

Example
// Create client
PreviewFeaturesClient previewFeaturesClient = PreviewFeaturesClient.Create();
// Initialize request argument(s)
string project = "";
// Make the request
PagedEnumerable<PreviewFeatureList, PreviewFeature> response = previewFeaturesClient.List(project);

// Iterate over all response items, lazily performing RPCs as required
foreach (PreviewFeature item in response)
{
    // Do something with each item
    Console.WriteLine(item);
}

// Or iterate over pages (of server-defined size), performing one RPC per page
foreach (PreviewFeatureList page in response.AsRawResponses())
{
    // Do something with each page of items
    Console.WriteLine("A page of results:");
    foreach (PreviewFeature item in page)
    {
        // Do something with each item
        Console.WriteLine(item);
    }
}

// Or retrieve a single page of known size (unless it's the final page), performing as many RPCs as required
int pageSize = 10;
Page<PreviewFeature> singlePage = response.ReadPage(pageSize);
// Do something with the page of items
Console.WriteLine($"A page of {pageSize} results (unless it's the final page):");
foreach (PreviewFeature item in singlePage)
{
    // Do something with each item
    Console.WriteLine(item);
}
// Store the pageToken, for when the next page is required.
string nextPageToken = singlePage.NextPageToken;

ListAsync(ListPreviewFeaturesRequest, CallSettings)

public virtual PagedAsyncEnumerable<PreviewFeatureList, PreviewFeature> ListAsync(ListPreviewFeaturesRequest request, CallSettings callSettings = null)

Returns the details of the given PreviewFeature.

Parameters
Name Description
request ListPreviewFeaturesRequest

The request object containing all of the parameters for the API call.

callSettings CallSettings

If not null, applies overrides to this RPC call.

Returns
Type Description
PagedAsyncEnumerablePreviewFeatureListPreviewFeature

A pageable asynchronous sequence of PreviewFeature resources.

Example
// Create client
PreviewFeaturesClient previewFeaturesClient = await PreviewFeaturesClient.CreateAsync();
// Initialize request argument(s)
ListPreviewFeaturesRequest request = new ListPreviewFeaturesRequest
{
    OrderBy = "",
    Project = "",
    Filter = "",
    ReturnPartialSuccess = false,
};
// Make the request
PagedAsyncEnumerable<PreviewFeatureList, PreviewFeature> response = previewFeaturesClient.ListAsync(request);

// Iterate over all response items, lazily performing RPCs as required
await response.ForEachAsync((PreviewFeature item) =>
{
    // Do something with each item
    Console.WriteLine(item);
});

// Or iterate over pages (of server-defined size), performing one RPC per page
await response.AsRawResponses().ForEachAsync((PreviewFeatureList page) =>
{
    // Do something with each page of items
    Console.WriteLine("A page of results:");
    foreach (PreviewFeature item in page)
    {
        // Do something with each item
        Console.WriteLine(item);
    }
});

// Or retrieve a single page of known size (unless it's the final page), performing as many RPCs as required
int pageSize = 10;
Page<PreviewFeature> singlePage = await response.ReadPageAsync(pageSize);
// Do something with the page of items
Console.WriteLine($"A page of {pageSize} results (unless it's the final page):");
foreach (PreviewFeature item in singlePage)
{
    // Do something with each item
    Console.WriteLine(item);
}
// Store the pageToken, for when the next page is required.
string nextPageToken = singlePage.NextPageToken;

ListAsync(string, string, int?, CallSettings)

public virtual PagedAsyncEnumerable<PreviewFeatureList, PreviewFeature> ListAsync(string project, string pageToken = null, int? pageSize = null, CallSettings callSettings = null)

Returns the details of the given PreviewFeature.

Parameters
Name Description
project string

Project ID for this request.

pageToken string

The token returned from the previous request. A value of null or an empty string retrieves the first page.

pageSize int

The size of page to request. The response will not be larger than this, but may be smaller. A value of null or 0 uses a server-defined page size.

callSettings CallSettings

If not null, applies overrides to this RPC call.

Returns
Type Description
PagedAsyncEnumerablePreviewFeatureListPreviewFeature

A pageable asynchronous sequence of PreviewFeature resources.

Example
// Create client
PreviewFeaturesClient previewFeaturesClient = await PreviewFeaturesClient.CreateAsync();
// Initialize request argument(s)
string project = "";
// Make the request
PagedAsyncEnumerable<PreviewFeatureList, PreviewFeature> response = previewFeaturesClient.ListAsync(project);

// Iterate over all response items, lazily performing RPCs as required
await response.ForEachAsync((PreviewFeature item) =>
{
    // Do something with each item
    Console.WriteLine(item);
});

// Or iterate over pages (of server-defined size), performing one RPC per page
await response.AsRawResponses().ForEachAsync((PreviewFeatureList page) =>
{
    // Do something with each page of items
    Console.WriteLine("A page of results:");
    foreach (PreviewFeature item in page)
    {
        // Do something with each item
        Console.WriteLine(item);
    }
});

// Or retrieve a single page of known size (unless it's the final page), performing as many RPCs as required
int pageSize = 10;
Page<PreviewFeature> singlePage = await response.ReadPageAsync(pageSize);
// Do something with the page of items
Console.WriteLine($"A page of {pageSize} results (unless it's the final page):");
foreach (PreviewFeature item in singlePage)
{
    // Do something with each item
    Console.WriteLine(item);
}
// Store the pageToken, for when the next page is required.
string nextPageToken = singlePage.NextPageToken;

PollOnceUpdate(string, CallSettings)

public virtual Operation<Operation, Operation> PollOnceUpdate(string operationName, CallSettings callSettings = null)

Poll an operation once, using an operationName from a previous invocation of Update.

Parameters
Name Description
operationName string

The name of a previously invoked operation. Must not be null or empty.

callSettings CallSettings

If not null, applies overrides to this RPC call.

Returns
Type Description
OperationOperationOperation

The result of polling the operation.

PollOnceUpdateAsync(string, CallSettings)

public virtual Task<Operation<Operation, Operation>> PollOnceUpdateAsync(string operationName, CallSettings callSettings = null)

Asynchronously poll an operation once, using an operationName from a previous invocation of Update .

Parameters
Name Description
operationName string

The name of a previously invoked operation. Must not be null or empty.

callSettings CallSettings

If not null, applies overrides to this RPC call.

Returns
Type Description
TaskOperationOperationOperation

A task representing the result of polling the operation.

ShutdownDefaultChannelsAsync()

public static Task ShutdownDefaultChannelsAsync()

Shuts down any channels automatically created by Create() and CreateAsync(CancellationToken). Channels which weren't automatically created are not affected.

Returns
Type Description
Task

A task representing the asynchronous shutdown operation.

Remarks

After calling this method, further calls to Create() and CreateAsync(CancellationToken) will create new channels, which could in turn be shut down by another call to this method.

Update(UpdatePreviewFeatureRequest, CallSettings)

public virtual Operation<Operation, Operation> Update(UpdatePreviewFeatureRequest request, CallSettings callSettings = null)

Patches the given PreviewFeature. This method is used to enable or disable a PreviewFeature.

Parameters
Name Description
request UpdatePreviewFeatureRequest

The request object containing all of the parameters for the API call.

callSettings CallSettings

If not null, applies overrides to this RPC call.

Returns
Type Description
OperationOperationOperation

The RPC response.

Example
// Create client
PreviewFeaturesClient previewFeaturesClient = PreviewFeaturesClient.Create();
// Initialize request argument(s)
UpdatePreviewFeatureRequest request = new UpdatePreviewFeatureRequest
{
    PreviewFeatureResource = new PreviewFeature(),
    RequestId = "",
    Project = "",
    PreviewFeature = "",
};
// Make the request
lro::Operation<Operation, Operation> response = previewFeaturesClient.Update(request);

// 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 = previewFeaturesClient.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;
}

Update(string, string, PreviewFeature, CallSettings)

public virtual Operation<Operation, Operation> Update(string project, string previewFeature, PreviewFeature previewFeatureResource, CallSettings callSettings = null)

Patches the given PreviewFeature. This method is used to enable or disable a PreviewFeature.

Parameters
Name Description
project string

Project ID for this request.

previewFeature string

Name of the PreviewFeature for this request.

previewFeatureResource PreviewFeature

The body resource for this request

callSettings CallSettings

If not null, applies overrides to this RPC call.

Returns
Type Description
OperationOperationOperation

The RPC response.

Example
// Create client
PreviewFeaturesClient previewFeaturesClient = PreviewFeaturesClient.Create();
// Initialize request argument(s)
string project = "";
string previewFeature = "";
PreviewFeature previewFeatureResource = new PreviewFeature();
// Make the request
lro::Operation<Operation, Operation> response = previewFeaturesClient.Update(project, previewFeature, previewFeatureResource);

// 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 = previewFeaturesClient.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;
}

UpdateAsync(UpdatePreviewFeatureRequest, CallSettings)

public virtual Task<Operation<Operation, Operation>> UpdateAsync(UpdatePreviewFeatureRequest request, CallSettings callSettings = null)

Patches the given PreviewFeature. This method is used to enable or disable a PreviewFeature.

Parameters
Name Description
request UpdatePreviewFeatureRequest

The request object containing all of the parameters for the API call.

callSettings CallSettings

If not null, applies overrides to this RPC call.

Returns
Type Description
TaskOperationOperationOperation

A Task containing the RPC response.

Example
// Create client
PreviewFeaturesClient previewFeaturesClient = await PreviewFeaturesClient.CreateAsync();
// Initialize request argument(s)
UpdatePreviewFeatureRequest request = new UpdatePreviewFeatureRequest
{
    PreviewFeatureResource = new PreviewFeature(),
    RequestId = "",
    Project = "",
    PreviewFeature = "",
};
// Make the request
lro::Operation<Operation, Operation> response = await previewFeaturesClient.UpdateAsync(request);

// Poll until the returned long-running operation is complete
lro::Operation<Operation, Operation> completedResponse = await response.PollUntilCompletedAsync();
// 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 = await previewFeaturesClient.PollOnceUpdateAsync(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;
}

UpdateAsync(UpdatePreviewFeatureRequest, CancellationToken)

public virtual Task<Operation<Operation, Operation>> UpdateAsync(UpdatePreviewFeatureRequest request, CancellationToken cancellationToken)

Patches the given PreviewFeature. This method is used to enable or disable a PreviewFeature.

Parameters
Name Description
request UpdatePreviewFeatureRequest

The request object containing all of the parameters for the API call.

cancellationToken CancellationToken

A CancellationToken to use for this RPC.

Returns
Type Description
TaskOperationOperationOperation

A Task containing the RPC response.

Example
// Create client
PreviewFeaturesClient previewFeaturesClient = await PreviewFeaturesClient.CreateAsync();
// Initialize request argument(s)
UpdatePreviewFeatureRequest request = new UpdatePreviewFeatureRequest
{
    PreviewFeatureResource = new PreviewFeature(),
    RequestId = "",
    Project = "",
    PreviewFeature = "",
};
// Make the request
lro::Operation<Operation, Operation> response = await previewFeaturesClient.UpdateAsync(request);

// Poll until the returned long-running operation is complete
lro::Operation<Operation, Operation> completedResponse = await response.PollUntilCompletedAsync();
// 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 = await previewFeaturesClient.PollOnceUpdateAsync(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;
}

UpdateAsync(string, string, PreviewFeature, CallSettings)

public virtual Task<Operation<Operation, Operation>> UpdateAsync(string project, string previewFeature, PreviewFeature previewFeatureResource, CallSettings callSettings = null)

Patches the given PreviewFeature. This method is used to enable or disable a PreviewFeature.

Parameters
Name Description
project string

Project ID for this request.

previewFeature string

Name of the PreviewFeature for this request.

previewFeatureResource PreviewFeature

The body resource for this request

callSettings CallSettings

If not null, applies overrides to this RPC call.

Returns
Type Description
TaskOperationOperationOperation

A Task containing the RPC response.

Example
// Create client
PreviewFeaturesClient previewFeaturesClient = await PreviewFeaturesClient.CreateAsync();
// Initialize request argument(s)
string project = "";
string previewFeature = "";
PreviewFeature previewFeatureResource = new PreviewFeature();
// Make the request
lro::Operation<Operation, Operation> response = await previewFeaturesClient.UpdateAsync(project, previewFeature, previewFeatureResource);

// Poll until the returned long-running operation is complete
lro::Operation<Operation, Operation> completedResponse = await response.PollUntilCompletedAsync();
// 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 = await previewFeaturesClient.PollOnceUpdateAsync(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;
}

UpdateAsync(string, string, PreviewFeature, CancellationToken)

public virtual Task<Operation<Operation, Operation>> UpdateAsync(string project, string previewFeature, PreviewFeature previewFeatureResource, CancellationToken cancellationToken)

Patches the given PreviewFeature. This method is used to enable or disable a PreviewFeature.

Parameters
Name Description
project string

Project ID for this request.

previewFeature string

Name of the PreviewFeature for this request.

previewFeatureResource PreviewFeature

The body resource for this request

cancellationToken CancellationToken

A CancellationToken to use for this RPC.

Returns
Type Description
TaskOperationOperationOperation

A Task containing the RPC response.

Example
// Create client
PreviewFeaturesClient previewFeaturesClient = await PreviewFeaturesClient.CreateAsync();
// Initialize request argument(s)
string project = "";
string previewFeature = "";
PreviewFeature previewFeatureResource = new PreviewFeature();
// Make the request
lro::Operation<Operation, Operation> response = await previewFeaturesClient.UpdateAsync(project, previewFeature, previewFeatureResource);

// Poll until the returned long-running operation is complete
lro::Operation<Operation, Operation> completedResponse = await response.PollUntilCompletedAsync();
// 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 = await previewFeaturesClient.PollOnceUpdateAsync(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;
}