Compute V1 Client - Class PacketMirroringsClient (1.13.0)

Reference documentation and code samples for the Compute V1 Client class PacketMirroringsClient.

Service Description: The PacketMirrorings API.

This class provides the ability to make remote calls to the backing service through method calls that map to API methods. Sample code to get started:

$packetMirroringsClient = new PacketMirroringsClient();
try {
    $project = 'project';
    // Iterate over pages of elements
    $pagedResponse = $packetMirroringsClient->aggregatedList($project);
    foreach ($pagedResponse->iteratePages() as $page) {
        foreach ($page as $key => $element) {
            // doSomethingWith($element);
        }
    }
    // Alternatively:
    // Iterate through all elements
    $pagedResponse = $packetMirroringsClient->aggregatedList($project);
    foreach ($pagedResponse->iterateAllElements() as $element) {
        // doSomethingWith($element);
    }
} finally {
    $packetMirroringsClient->close();
}

This service has a new (beta) implementation. See Google\Cloud\Compute\V1\Client\PacketMirroringsClient to use the new surface.

Namespace

Google \ Cloud \ Compute \ V1

Methods

__construct

Constructor.

Parameters
NameDescription
options array

Optional. Options for configuring the service API wrapper.

↳ apiEndpoint string

The address of the API remote host. May optionally include the port, formatted as "

↳ credentials string|array|FetchAuthTokenInterface|CredentialsWrapper

The credentials to be used by the client to authorize API calls. This option accepts either a path to a credentials file, or a decoded credentials file as a PHP array. Advanced usage: In addition, this option can also accept a pre-constructed Google\Auth\FetchAuthTokenInterface object or Google\ApiCore\CredentialsWrapper object. Note that when one of these objects are provided, any settings in $credentialsConfig will be ignored.

↳ credentialsConfig array

Options used to configure credentials, including auth token caching, for the client. For a full list of supporting configuration options, see Google\ApiCore\CredentialsWrapper::build() .

↳ disableRetries bool

Determines whether or not retries defined by the client configuration should be disabled. Defaults to false.

↳ clientConfig string|array

Client method configuration, including retry settings. This option can be either a path to a JSON file, or a PHP array containing the decoded JSON data. By default this settings points to the default client config file, which is provided in the resources folder.

↳ transport string|TransportInterface

The transport used for executing network requests. At the moment, supports only rest. Advanced usage: Additionally, it is possible to pass in an already instantiated Google\ApiCore\Transport\TransportInterface object. Note that when this object is provided, any settings in $transportConfig, and any $apiEndpoint setting, will be ignored.

↳ transportConfig array

Configuration options that will be used to construct the transport. Options for each supported transport type should be passed in a key for that transport. For example: $transportConfig = [ 'rest' => [...], ]; See the Google\ApiCore\Transport\RestTransport::build() method for the supported options.

↳ clientCertSource callable

A callable which returns the client cert as a string. This can be used to provide a certificate and private key to the transport layer for mTLS.

aggregatedList

Retrieves an aggregated list of packetMirrorings.

Parameters
NameDescription
project string

Project ID for this request.

optionalArgs array

Optional.

↳ filter string

A filter expression that filters resources listed in the response. Most Compute resources support two types of filter expressions: expressions that support regular expressions and expressions that follow API improvement proposal AIP-160. These two types of filter expressions cannot be mixed in one request. If you want to use AIP-160, your expression must specify the field name, an operator, and the value that you want to use for filtering. The value must be a string, a number, or a boolean. The operator must be either =, !=, >, <, <=, >= or :. For example, if you are filtering Compute Engine instances, you can exclude instances named example-instance by specifying name != example-instance. The :* comparison can be used to test whether a key has been defined. For example, to find all objects with owner label use: labels.owner:* You can also filter nested fields. For example, you could specify scheduling.automaticRestart = false to include instances only if they are not scheduled for automatic restarts. You can use filtering on nested fields to filter based on resource labels. To filter on multiple expressions, provide each separate expression within parentheses. For example: (scheduling.automaticRestart = true) (cpuPlatform = "Intel Skylake") By default, each expression is an AND expression. However, you can include AND and OR expressions explicitly. For example: (cpuPlatform = "Intel Skylake") OR (cpuPlatform = "Intel Broadwell") AND (scheduling.automaticRestart = true) If you want to use a regular expression, use the eq (equal) or ne (not equal) operator against a single un-parenthesized expression with or without quotes or against multiple parenthesized expressions. Examples: fieldname eq unquoted literal fieldname eq 'single quoted literal' fieldname eq "double quoted literal" (fieldname1 eq literal) (fieldname2 ne "literal") The literal value is interpreted as a regular expression using Google RE2 library syntax. The literal value must match the entire field. For example, to filter for instances that do not end with name "instance", you would use name ne .*instance. You cannot combine constraints on multiple fields using regular expressions.

↳ includeAllScopes bool

Indicates whether every visible scope for each scope type (zone, region, global) should be included in the response. For new resource types added after this field, the flag has no effect as new resource types will always include every visible scope for each scope type in response. For resource types which predate this field, if this flag is omitted or false, only scopes of the scope types where the resource type is expected to be found will be included.

↳ maxResults int

The maximum number of results per page that should be returned. If the number of available results is larger than maxResults, Compute Engine returns a nextPageToken that can be used to get the next page of results in subsequent list requests. Acceptable values are 0 to 500, inclusive. (Default: 500)

↳ orderBy string

Sorts list results by a certain order. By default, results are returned in alphanumerical order based on the resource name. You can also sort results in descending order based on the creation timestamp using orderBy="creationTimestamp desc". This sorts results based on the creationTimestamp field in reverse chronological order (newest result first). Use this to sort resources like operations so that the newest operation is returned first. Currently, only sorting by name or creationTimestamp desc is supported.

↳ pageToken string

A page token is used to specify a page of values to be returned. If no page token is specified (the default), the first page of values will be returned. Any page token used here must have been generated by a previous call to the API.

↳ returnPartialSuccess bool

Opt-in for partial success behavior which provides partial results in case of failure. The default value is false.

↳ serviceProjectNumber int
↳ retrySettings RetrySettings|array

Retry settings to use for this call. Can be a Google\ApiCore\RetrySettings object, or an associative array of retry settings parameters. See the documentation on Google\ApiCore\RetrySettings for example usage.

Returns
TypeDescription
Google\ApiCore\PagedListResponse
Example
use Google\ApiCore\ApiException;
use Google\ApiCore\PagedListResponse;
use Google\Cloud\Compute\V1\PacketMirroringsClient;

/**
 * @param string $project Project ID for this request.
 */
function aggregated_list_sample(string $project): void
{
    // Create a client.
    $packetMirroringsClient = new PacketMirroringsClient();

    // Call the API and handle any network failures.
    try {
        /** @var PagedListResponse $response */
        $response = $packetMirroringsClient->aggregatedList($project);

        foreach ($response as $element) {
            printf('Element data: %s' . PHP_EOL, $element->serializeToJsonString());
        }
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

/**
 * Helper to execute the sample.
 *
 * This sample has been automatically generated and should be regarded as a code
 * template only. It will require modifications to work:
 *  - It may require correct/in-range values for request initialization.
 *  - It may require specifying regional endpoints when creating the service client,
 *    please see the apiEndpoint client configuration option for more details.
 */
function callSample(): void
{
    $project = '[PROJECT]';

    aggregated_list_sample($project);
}

delete

Deletes the specified PacketMirroring resource.

Parameters
NameDescription
packetMirroring string

Name of the PacketMirroring resource to delete.

project string

Project ID for this request.

region string

Name of the region for this request.

optionalArgs array

Optional.

↳ requestId string

An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments. The request ID must be a valid UUID with the exception that zero UUID is not supported ( 00000000-0000-0000-0000-000000000000).

↳ retrySettings RetrySettings|array

Retry settings to use for this call. Can be a Google\ApiCore\RetrySettings object, or an associative array of retry settings parameters. See the documentation on Google\ApiCore\RetrySettings for example usage.

Returns
TypeDescription
Google\ApiCore\OperationResponse
Example
use Google\ApiCore\ApiException;
use Google\ApiCore\OperationResponse;
use Google\Cloud\Compute\V1\PacketMirroringsClient;
use Google\Rpc\Status;

/**
 * @param string $packetMirroring Name of the PacketMirroring resource to delete.
 * @param string $project         Project ID for this request.
 * @param string $region          Name of the region for this request.
 */
function delete_sample(string $packetMirroring, string $project, string $region): void
{
    // Create a client.
    $packetMirroringsClient = new PacketMirroringsClient();

    // Call the API and handle any network failures.
    try {
        /** @var OperationResponse $response */
        $response = $packetMirroringsClient->delete($packetMirroring, $project, $region);
        $response->pollUntilComplete();

        if ($response->operationSucceeded()) {
            printf('Operation completed successfully.' . PHP_EOL);
        } else {
            /** @var Status $error */
            $error = $response->getError();
            printf('Operation failed with error data: %s' . PHP_EOL, $error->serializeToJsonString());
        }
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

/**
 * Helper to execute the sample.
 *
 * This sample has been automatically generated and should be regarded as a code
 * template only. It will require modifications to work:
 *  - It may require correct/in-range values for request initialization.
 *  - It may require specifying regional endpoints when creating the service client,
 *    please see the apiEndpoint client configuration option for more details.
 */
function callSample(): void
{
    $packetMirroring = '[PACKET_MIRRORING]';
    $project = '[PROJECT]';
    $region = '[REGION]';

    delete_sample($packetMirroring, $project, $region);
}

get

Returns the specified PacketMirroring resource.

Parameters
NameDescription
packetMirroring string

Name of the PacketMirroring resource to return.

project string

Project ID for this request.

region string

Name of the region for this request.

optionalArgs array

Optional.

↳ retrySettings RetrySettings|array

Retry settings to use for this call. Can be a Google\ApiCore\RetrySettings object, or an associative array of retry settings parameters. See the documentation on Google\ApiCore\RetrySettings for example usage.

Returns
TypeDescription
Google\Cloud\Compute\V1\PacketMirroring
Example
use Google\ApiCore\ApiException;
use Google\Cloud\Compute\V1\PacketMirroring;
use Google\Cloud\Compute\V1\PacketMirroringsClient;

/**
 * @param string $packetMirroring Name of the PacketMirroring resource to return.
 * @param string $project         Project ID for this request.
 * @param string $region          Name of the region for this request.
 */
function get_sample(string $packetMirroring, string $project, string $region): void
{
    // Create a client.
    $packetMirroringsClient = new PacketMirroringsClient();

    // Call the API and handle any network failures.
    try {
        /** @var PacketMirroring $response */
        $response = $packetMirroringsClient->get($packetMirroring, $project, $region);
        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

/**
 * Helper to execute the sample.
 *
 * This sample has been automatically generated and should be regarded as a code
 * template only. It will require modifications to work:
 *  - It may require correct/in-range values for request initialization.
 *  - It may require specifying regional endpoints when creating the service client,
 *    please see the apiEndpoint client configuration option for more details.
 */
function callSample(): void
{
    $packetMirroring = '[PACKET_MIRRORING]';
    $project = '[PROJECT]';
    $region = '[REGION]';

    get_sample($packetMirroring, $project, $region);
}

insert

Creates a PacketMirroring resource in the specified project and region using the data included in the request.

Parameters
NameDescription
packetMirroringResource Google\Cloud\Compute\V1\PacketMirroring

The body resource for this request

project string

Project ID for this request.

region string

Name of the region for this request.

optionalArgs array

Optional.

↳ requestId string

An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments. The request ID must be a valid UUID with the exception that zero UUID is not supported ( 00000000-0000-0000-0000-000000000000).

↳ retrySettings RetrySettings|array

Retry settings to use for this call. Can be a Google\ApiCore\RetrySettings object, or an associative array of retry settings parameters. See the documentation on Google\ApiCore\RetrySettings for example usage.

Returns
TypeDescription
Google\ApiCore\OperationResponse
Example
use Google\ApiCore\ApiException;
use Google\ApiCore\OperationResponse;
use Google\Cloud\Compute\V1\PacketMirroring;
use Google\Cloud\Compute\V1\PacketMirroringsClient;
use Google\Rpc\Status;

/**
 * @param string $project Project ID for this request.
 * @param string $region  Name of the region for this request.
 */
function insert_sample(string $project, string $region): void
{
    // Create a client.
    $packetMirroringsClient = new PacketMirroringsClient();

    // Prepare any non-scalar elements to be passed along with the request.
    $packetMirroringResource = new PacketMirroring();

    // Call the API and handle any network failures.
    try {
        /** @var OperationResponse $response */
        $response = $packetMirroringsClient->insert($packetMirroringResource, $project, $region);
        $response->pollUntilComplete();

        if ($response->operationSucceeded()) {
            printf('Operation completed successfully.' . PHP_EOL);
        } else {
            /** @var Status $error */
            $error = $response->getError();
            printf('Operation failed with error data: %s' . PHP_EOL, $error->serializeToJsonString());
        }
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

/**
 * Helper to execute the sample.
 *
 * This sample has been automatically generated and should be regarded as a code
 * template only. It will require modifications to work:
 *  - It may require correct/in-range values for request initialization.
 *  - It may require specifying regional endpoints when creating the service client,
 *    please see the apiEndpoint client configuration option for more details.
 */
function callSample(): void
{
    $project = '[PROJECT]';
    $region = '[REGION]';

    insert_sample($project, $region);
}

list

Retrieves a list of PacketMirroring resources available to the specified project and region.

Parameters
NameDescription
project string

Project ID for this request.

region string

Name of the region for this request.

optionalArgs array

Optional.

↳ filter string

A filter expression that filters resources listed in the response. Most Compute resources support two types of filter expressions: expressions that support regular expressions and expressions that follow API improvement proposal AIP-160. These two types of filter expressions cannot be mixed in one request. If you want to use AIP-160, your expression must specify the field name, an operator, and the value that you want to use for filtering. The value must be a string, a number, or a boolean. The operator must be either =, !=, >, <, <=, >= or :. For example, if you are filtering Compute Engine instances, you can exclude instances named example-instance by specifying name != example-instance. The :* comparison can be used to test whether a key has been defined. For example, to find all objects with owner label use: labels.owner:* You can also filter nested fields. For example, you could specify scheduling.automaticRestart = false to include instances only if they are not scheduled for automatic restarts. You can use filtering on nested fields to filter based on resource labels. To filter on multiple expressions, provide each separate expression within parentheses. For example: (scheduling.automaticRestart = true) (cpuPlatform = "Intel Skylake") By default, each expression is an AND expression. However, you can include AND and OR expressions explicitly. For example: (cpuPlatform = "Intel Skylake") OR (cpuPlatform = "Intel Broadwell") AND (scheduling.automaticRestart = true) If you want to use a regular expression, use the eq (equal) or ne (not equal) operator against a single un-parenthesized expression with or without quotes or against multiple parenthesized expressions. Examples: fieldname eq unquoted literal fieldname eq 'single quoted literal' fieldname eq "double quoted literal" (fieldname1 eq literal) (fieldname2 ne "literal") The literal value is interpreted as a regular expression using Google RE2 library syntax. The literal value must match the entire field. For example, to filter for instances that do not end with name "instance", you would use name ne .*instance. You cannot combine constraints on multiple fields using regular expressions.

↳ maxResults int

The maximum number of results per page that should be returned. If the number of available results is larger than maxResults, Compute Engine returns a nextPageToken that can be used to get the next page of results in subsequent list requests. Acceptable values are 0 to 500, inclusive. (Default: 500)

↳ orderBy string

Sorts list results by a certain order. By default, results are returned in alphanumerical order based on the resource name. You can also sort results in descending order based on the creation timestamp using orderBy="creationTimestamp desc". This sorts results based on the creationTimestamp field in reverse chronological order (newest result first). Use this to sort resources like operations so that the newest operation is returned first. Currently, only sorting by name or creationTimestamp desc is supported.

↳ pageToken string

A page token is used to specify a page of values to be returned. If no page token is specified (the default), the first page of values will be returned. Any page token used here must have been generated by a previous call to the API.

↳ returnPartialSuccess bool

Opt-in for partial success behavior which provides partial results in case of failure. The default value is false.

↳ retrySettings RetrySettings|array

Retry settings to use for this call. Can be a Google\ApiCore\RetrySettings object, or an associative array of retry settings parameters. See the documentation on Google\ApiCore\RetrySettings for example usage.

Returns
TypeDescription
Google\ApiCore\PagedListResponse
Example
use Google\ApiCore\ApiException;
use Google\ApiCore\PagedListResponse;
use Google\Cloud\Compute\V1\PacketMirroringsClient;

/**
 * @param string $project Project ID for this request.
 * @param string $region  Name of the region for this request.
 */
function list_sample(string $project, string $region): void
{
    // Create a client.
    $packetMirroringsClient = new PacketMirroringsClient();

    // Call the API and handle any network failures.
    try {
        /** @var PagedListResponse $response */
        $response = $packetMirroringsClient->list($project, $region);

        foreach ($response as $element) {
            printf('Element data: %s' . PHP_EOL, $element->serializeToJsonString());
        }
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

/**
 * Helper to execute the sample.
 *
 * This sample has been automatically generated and should be regarded as a code
 * template only. It will require modifications to work:
 *  - It may require correct/in-range values for request initialization.
 *  - It may require specifying regional endpoints when creating the service client,
 *    please see the apiEndpoint client configuration option for more details.
 */
function callSample(): void
{
    $project = '[PROJECT]';
    $region = '[REGION]';

    list_sample($project, $region);
}

patch

Patches the specified PacketMirroring resource with the data included in the request. This method supports PATCH semantics and uses JSON merge patch format and processing rules.

Parameters
NameDescription
packetMirroring string

Name of the PacketMirroring resource to patch.

packetMirroringResource Google\Cloud\Compute\V1\PacketMirroring

The body resource for this request

project string

Project ID for this request.

region string

Name of the region for this request.

optionalArgs array

Optional.

↳ requestId string

An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments. The request ID must be a valid UUID with the exception that zero UUID is not supported ( 00000000-0000-0000-0000-000000000000).

↳ retrySettings RetrySettings|array

Retry settings to use for this call. Can be a Google\ApiCore\RetrySettings object, or an associative array of retry settings parameters. See the documentation on Google\ApiCore\RetrySettings for example usage.

Returns
TypeDescription
Google\ApiCore\OperationResponse
Example
use Google\ApiCore\ApiException;
use Google\ApiCore\OperationResponse;
use Google\Cloud\Compute\V1\PacketMirroring;
use Google\Cloud\Compute\V1\PacketMirroringsClient;
use Google\Rpc\Status;

/**
 * @param string $packetMirroring Name of the PacketMirroring resource to patch.
 * @param string $project         Project ID for this request.
 * @param string $region          Name of the region for this request.
 */
function patch_sample(string $packetMirroring, string $project, string $region): void
{
    // Create a client.
    $packetMirroringsClient = new PacketMirroringsClient();

    // Prepare any non-scalar elements to be passed along with the request.
    $packetMirroringResource = new PacketMirroring();

    // Call the API and handle any network failures.
    try {
        /** @var OperationResponse $response */
        $response = $packetMirroringsClient->patch(
            $packetMirroring,
            $packetMirroringResource,
            $project,
            $region
        );
        $response->pollUntilComplete();

        if ($response->operationSucceeded()) {
            printf('Operation completed successfully.' . PHP_EOL);
        } else {
            /** @var Status $error */
            $error = $response->getError();
            printf('Operation failed with error data: %s' . PHP_EOL, $error->serializeToJsonString());
        }
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

/**
 * Helper to execute the sample.
 *
 * This sample has been automatically generated and should be regarded as a code
 * template only. It will require modifications to work:
 *  - It may require correct/in-range values for request initialization.
 *  - It may require specifying regional endpoints when creating the service client,
 *    please see the apiEndpoint client configuration option for more details.
 */
function callSample(): void
{
    $packetMirroring = '[PACKET_MIRRORING]';
    $project = '[PROJECT]';
    $region = '[REGION]';

    patch_sample($packetMirroring, $project, $region);
}

testIamPermissions

Returns permissions that a caller has on the specified resource.

Parameters
NameDescription
project string

Project ID for this request.

region string

The name of the region for this request.

resource string

Name or id of the resource for this request.

testPermissionsRequestResource Google\Cloud\Compute\V1\TestPermissionsRequest

The body resource for this request

optionalArgs array

Optional.

↳ retrySettings RetrySettings|array

Retry settings to use for this call. Can be a Google\ApiCore\RetrySettings object, or an associative array of retry settings parameters. See the documentation on Google\ApiCore\RetrySettings for example usage.

Returns
TypeDescription
Google\Cloud\Compute\V1\TestPermissionsResponse
Example
use Google\ApiCore\ApiException;
use Google\Cloud\Compute\V1\PacketMirroringsClient;
use Google\Cloud\Compute\V1\TestPermissionsRequest;
use Google\Cloud\Compute\V1\TestPermissionsResponse;

/**
 * @param string $project  Project ID for this request.
 * @param string $region   The name of the region for this request.
 * @param string $resource Name or id of the resource for this request.
 */
function test_iam_permissions_sample(string $project, string $region, string $resource): void
{
    // Create a client.
    $packetMirroringsClient = new PacketMirroringsClient();

    // Prepare any non-scalar elements to be passed along with the request.
    $testPermissionsRequestResource = new TestPermissionsRequest();

    // Call the API and handle any network failures.
    try {
        /** @var TestPermissionsResponse $response */
        $response = $packetMirroringsClient->testIamPermissions(
            $project,
            $region,
            $resource,
            $testPermissionsRequestResource
        );
        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

/**
 * Helper to execute the sample.
 *
 * This sample has been automatically generated and should be regarded as a code
 * template only. It will require modifications to work:
 *  - It may require correct/in-range values for request initialization.
 *  - It may require specifying regional endpoints when creating the service client,
 *    please see the apiEndpoint client configuration option for more details.
 */
function callSample(): void
{
    $project = '[PROJECT]';
    $region = '[REGION]';
    $resource = '[RESOURCE]';

    test_iam_permissions_sample($project, $region, $resource);
}

getOperationsClient

Return an RegionOperationsClient object with the same endpoint as $this.

Returns
TypeDescription
Google\Cloud\Compute\V1\RegionOperationsClient

resumeOperation

Resume an existing long running operation that was previously started by a long running API method. If $methodName is not provided, or does not match a long running API method, then the operation can still be resumed, but the OperationResponse object will not deserialize the final response.

Parameters
NameDescription
operationName string

The name of the long running operation

methodName string

The name of the method used to start the operation

Returns
TypeDescription
Google\ApiCore\OperationResponse

Constants

SERVICE_NAME

Value: 'google.cloud.compute.v1.PacketMirrorings'

The name of the service.

SERVICE_ADDRESS

Value: 'compute.googleapis.com'

The default address of the service.

DEFAULT_SERVICE_PORT

Value: 443

The default port of the service.

CODEGEN_NAME

Value: 'gapic'

The name of the code generator, to be included in the agent header.