Compute V1 Client - Class InstanceGroupManagersClient (1.22.0)

use Google\ApiCore\ApiException;
use Google\ApiCore\OperationResponse;
use Google\Cloud\Compute\V1\AbandonInstancesInstanceGroupManagerRequest;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\InstanceGroupManagersAbandonInstancesRequest;
use Google\Rpc\Status;

/**
 * @param string $instanceGroupManager The name of the managed instance group.
 * @param string $project              Project ID for this request.
 * @param string $zone                 The name of the zone where the managed instance group is located.
 */
function abandon_instances_sample(
    string $instanceGroupManager,
    string $project,
    string $zone
): void {
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $instanceGroupManagersAbandonInstancesRequestResource = new InstanceGroupManagersAbandonInstancesRequest();
    $request = (new AbandonInstancesInstanceGroupManagerRequest())
        ->setInstanceGroupManager($instanceGroupManager)
        ->setInstanceGroupManagersAbandonInstancesRequestResource(
            $instanceGroupManagersAbandonInstancesRequestResource
        )
        ->setProject($project)
        ->setZone($zone);

    // Call the API and handle any network failures.
    try {
        /** @var OperationResponse $response */
        $response = $instanceGroupManagersClient->abandonInstances($request);
        $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
{
    $instanceGroupManager = '[INSTANCE_GROUP_MANAGER]';
    $project = '[PROJECT]';
    $zone = '[ZONE]';

    abandon_instances_sample($instanceGroupManager, $project, $zone);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\PagedListResponse;
use Google\Cloud\Compute\V1\AggregatedListInstanceGroupManagersRequest;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;

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

    // Prepare the request message.
    $request = (new AggregatedListInstanceGroupManagersRequest())
        ->setProject($project);

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

        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);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\OperationResponse;
use Google\Cloud\Compute\V1\ApplyUpdatesToInstancesInstanceGroupManagerRequest;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\InstanceGroupManagersApplyUpdatesRequest;
use Google\Rpc\Status;

/**
 * @param string $instanceGroupManager The name of the managed instance group, should conform to RFC1035.
 * @param string $project              Project ID for this request.
 * @param string $zone                 The name of the zone where the managed instance group is located. Should conform to RFC1035.
 */
function apply_updates_to_instances_sample(
    string $instanceGroupManager,
    string $project,
    string $zone
): void {
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $instanceGroupManagersApplyUpdatesRequestResource = new InstanceGroupManagersApplyUpdatesRequest();
    $request = (new ApplyUpdatesToInstancesInstanceGroupManagerRequest())
        ->setInstanceGroupManager($instanceGroupManager)
        ->setInstanceGroupManagersApplyUpdatesRequestResource(
            $instanceGroupManagersApplyUpdatesRequestResource
        )
        ->setProject($project)
        ->setZone($zone);

    // Call the API and handle any network failures.
    try {
        /** @var OperationResponse $response */
        $response = $instanceGroupManagersClient->applyUpdatesToInstances($request);
        $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
{
    $instanceGroupManager = '[INSTANCE_GROUP_MANAGER]';
    $project = '[PROJECT]';
    $zone = '[ZONE]';

    apply_updates_to_instances_sample($instanceGroupManager, $project, $zone);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\OperationResponse;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\CreateInstancesInstanceGroupManagerRequest;
use Google\Cloud\Compute\V1\InstanceGroupManagersCreateInstancesRequest;
use Google\Rpc\Status;

/**
 * @param string $instanceGroupManager The name of the managed instance group. It should conform to RFC1035.
 * @param string $project              Project ID for this request.
 * @param string $zone                 The name of the zone where the managed instance group is located. It should conform to RFC1035.
 */
function create_instances_sample(
    string $instanceGroupManager,
    string $project,
    string $zone
): void {
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $instanceGroupManagersCreateInstancesRequestResource = new InstanceGroupManagersCreateInstancesRequest();
    $request = (new CreateInstancesInstanceGroupManagerRequest())
        ->setInstanceGroupManager($instanceGroupManager)
        ->setInstanceGroupManagersCreateInstancesRequestResource(
            $instanceGroupManagersCreateInstancesRequestResource
        )
        ->setProject($project)
        ->setZone($zone);

    // Call the API and handle any network failures.
    try {
        /** @var OperationResponse $response */
        $response = $instanceGroupManagersClient->createInstances($request);
        $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
{
    $instanceGroupManager = '[INSTANCE_GROUP_MANAGER]';
    $project = '[PROJECT]';
    $zone = '[ZONE]';

    create_instances_sample($instanceGroupManager, $project, $zone);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\OperationResponse;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\DeleteInstanceGroupManagerRequest;
use Google\Rpc\Status;

/**
 * @param string $instanceGroupManager The name of the managed instance group to delete.
 * @param string $project              Project ID for this request.
 * @param string $zone                 The name of the zone where the managed instance group is located.
 */
function delete_sample(string $instanceGroupManager, string $project, string $zone): void
{
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $request = (new DeleteInstanceGroupManagerRequest())
        ->setInstanceGroupManager($instanceGroupManager)
        ->setProject($project)
        ->setZone($zone);

    // Call the API and handle any network failures.
    try {
        /** @var OperationResponse $response */
        $response = $instanceGroupManagersClient->delete($request);
        $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
{
    $instanceGroupManager = '[INSTANCE_GROUP_MANAGER]';
    $project = '[PROJECT]';
    $zone = '[ZONE]';

    delete_sample($instanceGroupManager, $project, $zone);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\OperationResponse;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\DeleteInstancesInstanceGroupManagerRequest;
use Google\Cloud\Compute\V1\InstanceGroupManagersDeleteInstancesRequest;
use Google\Rpc\Status;

/**
 * @param string $instanceGroupManager The name of the managed instance group.
 * @param string $project              Project ID for this request.
 * @param string $zone                 The name of the zone where the managed instance group is located.
 */
function delete_instances_sample(
    string $instanceGroupManager,
    string $project,
    string $zone
): void {
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $instanceGroupManagersDeleteInstancesRequestResource = new InstanceGroupManagersDeleteInstancesRequest();
    $request = (new DeleteInstancesInstanceGroupManagerRequest())
        ->setInstanceGroupManager($instanceGroupManager)
        ->setInstanceGroupManagersDeleteInstancesRequestResource(
            $instanceGroupManagersDeleteInstancesRequestResource
        )
        ->setProject($project)
        ->setZone($zone);

    // Call the API and handle any network failures.
    try {
        /** @var OperationResponse $response */
        $response = $instanceGroupManagersClient->deleteInstances($request);
        $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
{
    $instanceGroupManager = '[INSTANCE_GROUP_MANAGER]';
    $project = '[PROJECT]';
    $zone = '[ZONE]';

    delete_instances_sample($instanceGroupManager, $project, $zone);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\OperationResponse;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\DeletePerInstanceConfigsInstanceGroupManagerRequest;
use Google\Cloud\Compute\V1\InstanceGroupManagersDeletePerInstanceConfigsReq;
use Google\Rpc\Status;

/**
 * @param string $instanceGroupManager The name of the managed instance group. It should conform to RFC1035.
 * @param string $project              Project ID for this request.
 * @param string $zone                 The name of the zone where the managed instance group is located. It should conform to RFC1035.
 */
function delete_per_instance_configs_sample(
    string $instanceGroupManager,
    string $project,
    string $zone
): void {
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $instanceGroupManagersDeletePerInstanceConfigsReqResource = new InstanceGroupManagersDeletePerInstanceConfigsReq();
    $request = (new DeletePerInstanceConfigsInstanceGroupManagerRequest())
        ->setInstanceGroupManager($instanceGroupManager)
        ->setInstanceGroupManagersDeletePerInstanceConfigsReqResource(
            $instanceGroupManagersDeletePerInstanceConfigsReqResource
        )
        ->setProject($project)
        ->setZone($zone);

    // Call the API and handle any network failures.
    try {
        /** @var OperationResponse $response */
        $response = $instanceGroupManagersClient->deletePerInstanceConfigs($request);
        $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
{
    $instanceGroupManager = '[INSTANCE_GROUP_MANAGER]';
    $project = '[PROJECT]';
    $zone = '[ZONE]';

    delete_per_instance_configs_sample($instanceGroupManager, $project, $zone);
}

use Google\ApiCore\ApiException;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\GetInstanceGroupManagerRequest;
use Google\Cloud\Compute\V1\InstanceGroupManager;

/**
 * @param string $instanceGroupManager The name of the managed instance group.
 * @param string $project              Project ID for this request.
 * @param string $zone                 The name of the zone where the managed instance group is located.
 */
function get_sample(string $instanceGroupManager, string $project, string $zone): void
{
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $request = (new GetInstanceGroupManagerRequest())
        ->setInstanceGroupManager($instanceGroupManager)
        ->setProject($project)
        ->setZone($zone);

    // Call the API and handle any network failures.
    try {
        /** @var InstanceGroupManager $response */
        $response = $instanceGroupManagersClient->get($request);
        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
{
    $instanceGroupManager = '[INSTANCE_GROUP_MANAGER]';
    $project = '[PROJECT]';
    $zone = '[ZONE]';

    get_sample($instanceGroupManager, $project, $zone);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\OperationResponse;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\InsertInstanceGroupManagerRequest;
use Google\Cloud\Compute\V1\InstanceGroupManager;
use Google\Rpc\Status;

/**
 * @param string $project Project ID for this request.
 * @param string $zone    The name of the zone where you want to create the managed instance group.
 */
function insert_sample(string $project, string $zone): void
{
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $instanceGroupManagerResource = new InstanceGroupManager();
    $request = (new InsertInstanceGroupManagerRequest())
        ->setInstanceGroupManagerResource($instanceGroupManagerResource)
        ->setProject($project)
        ->setZone($zone);

    // Call the API and handle any network failures.
    try {
        /** @var OperationResponse $response */
        $response = $instanceGroupManagersClient->insert($request);
        $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]';
    $zone = '[ZONE]';

    insert_sample($project, $zone);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\PagedListResponse;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\ListInstanceGroupManagersRequest;

/**
 * @param string $project Project ID for this request.
 * @param string $zone    The name of the zone where the managed instance group is located.
 */
function list_sample(string $project, string $zone): void
{
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $request = (new ListInstanceGroupManagersRequest())
        ->setProject($project)
        ->setZone($zone);

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

        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]';
    $zone = '[ZONE]';

    list_sample($project, $zone);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\PagedListResponse;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\ListErrorsInstanceGroupManagersRequest;

/**
 * @param string $instanceGroupManager The name of the managed instance group. It must be a string that meets the requirements in RFC1035, or an unsigned long integer: must match regexp pattern: (?:[a-z](?:[-a-z0-9]{0,61}[a-z0-9])?)|1-9{0,19}.
 * @param string $project              Project ID for this request.
 * @param string $zone                 The name of the zone where the managed instance group is located. It should conform to RFC1035.
 */
function list_errors_sample(string $instanceGroupManager, string $project, string $zone): void
{
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $request = (new ListErrorsInstanceGroupManagersRequest())
        ->setInstanceGroupManager($instanceGroupManager)
        ->setProject($project)
        ->setZone($zone);

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

        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
{
    $instanceGroupManager = '[INSTANCE_GROUP_MANAGER]';
    $project = '[PROJECT]';
    $zone = '[ZONE]';

    list_errors_sample($instanceGroupManager, $project, $zone);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\PagedListResponse;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\ListManagedInstancesInstanceGroupManagersRequest;

/**
 * @param string $instanceGroupManager The name of the managed instance group.
 * @param string $project              Project ID for this request.
 * @param string $zone                 The name of the zone where the managed instance group is located.
 */
function list_managed_instances_sample(
    string $instanceGroupManager,
    string $project,
    string $zone
): void {
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $request = (new ListManagedInstancesInstanceGroupManagersRequest())
        ->setInstanceGroupManager($instanceGroupManager)
        ->setProject($project)
        ->setZone($zone);

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

        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
{
    $instanceGroupManager = '[INSTANCE_GROUP_MANAGER]';
    $project = '[PROJECT]';
    $zone = '[ZONE]';

    list_managed_instances_sample($instanceGroupManager, $project, $zone);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\PagedListResponse;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\ListPerInstanceConfigsInstanceGroupManagersRequest;

/**
 * @param string $instanceGroupManager The name of the managed instance group. It should conform to RFC1035.
 * @param string $project              Project ID for this request.
 * @param string $zone                 The name of the zone where the managed instance group is located. It should conform to RFC1035.
 */
function list_per_instance_configs_sample(
    string $instanceGroupManager,
    string $project,
    string $zone
): void {
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $request = (new ListPerInstanceConfigsInstanceGroupManagersRequest())
        ->setInstanceGroupManager($instanceGroupManager)
        ->setProject($project)
        ->setZone($zone);

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

        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
{
    $instanceGroupManager = '[INSTANCE_GROUP_MANAGER]';
    $project = '[PROJECT]';
    $zone = '[ZONE]';

    list_per_instance_configs_sample($instanceGroupManager, $project, $zone);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\OperationResponse;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\InstanceGroupManager;
use Google\Cloud\Compute\V1\PatchInstanceGroupManagerRequest;
use Google\Rpc\Status;

/**
 * @param string $instanceGroupManager The name of the instance group manager.
 * @param string $project              Project ID for this request.
 * @param string $zone                 The name of the zone where you want to create the managed instance group.
 */
function patch_sample(string $instanceGroupManager, string $project, string $zone): void
{
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $instanceGroupManagerResource = new InstanceGroupManager();
    $request = (new PatchInstanceGroupManagerRequest())
        ->setInstanceGroupManager($instanceGroupManager)
        ->setInstanceGroupManagerResource($instanceGroupManagerResource)
        ->setProject($project)
        ->setZone($zone);

    // Call the API and handle any network failures.
    try {
        /** @var OperationResponse $response */
        $response = $instanceGroupManagersClient->patch($request);
        $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
{
    $instanceGroupManager = '[INSTANCE_GROUP_MANAGER]';
    $project = '[PROJECT]';
    $zone = '[ZONE]';

    patch_sample($instanceGroupManager, $project, $zone);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\OperationResponse;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\InstanceGroupManagersPatchPerInstanceConfigsReq;
use Google\Cloud\Compute\V1\PatchPerInstanceConfigsInstanceGroupManagerRequest;
use Google\Rpc\Status;

/**
 * @param string $instanceGroupManager The name of the managed instance group. It should conform to RFC1035.
 * @param string $project              Project ID for this request.
 * @param string $zone                 The name of the zone where the managed instance group is located. It should conform to RFC1035.
 */
function patch_per_instance_configs_sample(
    string $instanceGroupManager,
    string $project,
    string $zone
): void {
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $instanceGroupManagersPatchPerInstanceConfigsReqResource = new InstanceGroupManagersPatchPerInstanceConfigsReq();
    $request = (new PatchPerInstanceConfigsInstanceGroupManagerRequest())
        ->setInstanceGroupManager($instanceGroupManager)
        ->setInstanceGroupManagersPatchPerInstanceConfigsReqResource(
            $instanceGroupManagersPatchPerInstanceConfigsReqResource
        )
        ->setProject($project)
        ->setZone($zone);

    // Call the API and handle any network failures.
    try {
        /** @var OperationResponse $response */
        $response = $instanceGroupManagersClient->patchPerInstanceConfigs($request);
        $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
{
    $instanceGroupManager = '[INSTANCE_GROUP_MANAGER]';
    $project = '[PROJECT]';
    $zone = '[ZONE]';

    patch_per_instance_configs_sample($instanceGroupManager, $project, $zone);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\OperationResponse;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\InstanceGroupManagersRecreateInstancesRequest;
use Google\Cloud\Compute\V1\RecreateInstancesInstanceGroupManagerRequest;
use Google\Rpc\Status;

/**
 * @param string $instanceGroupManager The name of the managed instance group.
 * @param string $project              Project ID for this request.
 * @param string $zone                 The name of the zone where the managed instance group is located.
 */
function recreate_instances_sample(
    string $instanceGroupManager,
    string $project,
    string $zone
): void {
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $instanceGroupManagersRecreateInstancesRequestResource = new InstanceGroupManagersRecreateInstancesRequest();
    $request = (new RecreateInstancesInstanceGroupManagerRequest())
        ->setInstanceGroupManager($instanceGroupManager)
        ->setInstanceGroupManagersRecreateInstancesRequestResource(
            $instanceGroupManagersRecreateInstancesRequestResource
        )
        ->setProject($project)
        ->setZone($zone);

    // Call the API and handle any network failures.
    try {
        /** @var OperationResponse $response */
        $response = $instanceGroupManagersClient->recreateInstances($request);
        $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
{
    $instanceGroupManager = '[INSTANCE_GROUP_MANAGER]';
    $project = '[PROJECT]';
    $zone = '[ZONE]';

    recreate_instances_sample($instanceGroupManager, $project, $zone);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\OperationResponse;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\ResizeInstanceGroupManagerRequest;
use Google\Rpc\Status;

/**
 * @param string $instanceGroupManager The name of the managed instance group.
 * @param string $project              Project ID for this request.
 * @param int    $size                 The number of running instances that the managed instance group should maintain at any given time. The group automatically adds or removes instances to maintain the number of instances specified by this parameter.
 * @param string $zone                 The name of the zone where the managed instance group is located.
 */
function resize_sample(
    string $instanceGroupManager,
    string $project,
    int $size,
    string $zone
): void {
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $request = (new ResizeInstanceGroupManagerRequest())
        ->setInstanceGroupManager($instanceGroupManager)
        ->setProject($project)
        ->setSize($size)
        ->setZone($zone);

    // Call the API and handle any network failures.
    try {
        /** @var OperationResponse $response */
        $response = $instanceGroupManagersClient->resize($request);
        $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
{
    $instanceGroupManager = '[INSTANCE_GROUP_MANAGER]';
    $project = '[PROJECT]';
    $size = 0;
    $zone = '[ZONE]';

    resize_sample($instanceGroupManager, $project, $size, $zone);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\OperationResponse;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\InstanceGroupManagersResumeInstancesRequest;
use Google\Cloud\Compute\V1\ResumeInstancesInstanceGroupManagerRequest;
use Google\Rpc\Status;

/**
 * @param string $instanceGroupManager The name of the managed instance group.
 * @param string $project              Project ID for this request.
 * @param string $zone                 The name of the zone where the managed instance group is located.
 */
function resume_instances_sample(
    string $instanceGroupManager,
    string $project,
    string $zone
): void {
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $instanceGroupManagersResumeInstancesRequestResource = new InstanceGroupManagersResumeInstancesRequest();
    $request = (new ResumeInstancesInstanceGroupManagerRequest())
        ->setInstanceGroupManager($instanceGroupManager)
        ->setInstanceGroupManagersResumeInstancesRequestResource(
            $instanceGroupManagersResumeInstancesRequestResource
        )
        ->setProject($project)
        ->setZone($zone);

    // Call the API and handle any network failures.
    try {
        /** @var OperationResponse $response */
        $response = $instanceGroupManagersClient->resumeInstances($request);
        $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
{
    $instanceGroupManager = '[INSTANCE_GROUP_MANAGER]';
    $project = '[PROJECT]';
    $zone = '[ZONE]';

    resume_instances_sample($instanceGroupManager, $project, $zone);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\OperationResponse;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\InstanceGroupManagersSetInstanceTemplateRequest;
use Google\Cloud\Compute\V1\SetInstanceTemplateInstanceGroupManagerRequest;
use Google\Rpc\Status;

/**
 * @param string $instanceGroupManager The name of the managed instance group.
 * @param string $project              Project ID for this request.
 * @param string $zone                 The name of the zone where the managed instance group is located.
 */
function set_instance_template_sample(
    string $instanceGroupManager,
    string $project,
    string $zone
): void {
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $instanceGroupManagersSetInstanceTemplateRequestResource = new InstanceGroupManagersSetInstanceTemplateRequest();
    $request = (new SetInstanceTemplateInstanceGroupManagerRequest())
        ->setInstanceGroupManager($instanceGroupManager)
        ->setInstanceGroupManagersSetInstanceTemplateRequestResource(
            $instanceGroupManagersSetInstanceTemplateRequestResource
        )
        ->setProject($project)
        ->setZone($zone);

    // Call the API and handle any network failures.
    try {
        /** @var OperationResponse $response */
        $response = $instanceGroupManagersClient->setInstanceTemplate($request);
        $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
{
    $instanceGroupManager = '[INSTANCE_GROUP_MANAGER]';
    $project = '[PROJECT]';
    $zone = '[ZONE]';

    set_instance_template_sample($instanceGroupManager, $project, $zone);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\OperationResponse;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\InstanceGroupManagersSetTargetPoolsRequest;
use Google\Cloud\Compute\V1\SetTargetPoolsInstanceGroupManagerRequest;
use Google\Rpc\Status;

/**
 * @param string $instanceGroupManager The name of the managed instance group.
 * @param string $project              Project ID for this request.
 * @param string $zone                 The name of the zone where the managed instance group is located.
 */
function set_target_pools_sample(
    string $instanceGroupManager,
    string $project,
    string $zone
): void {
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $instanceGroupManagersSetTargetPoolsRequestResource = new InstanceGroupManagersSetTargetPoolsRequest();
    $request = (new SetTargetPoolsInstanceGroupManagerRequest())
        ->setInstanceGroupManager($instanceGroupManager)
        ->setInstanceGroupManagersSetTargetPoolsRequestResource(
            $instanceGroupManagersSetTargetPoolsRequestResource
        )
        ->setProject($project)
        ->setZone($zone);

    // Call the API and handle any network failures.
    try {
        /** @var OperationResponse $response */
        $response = $instanceGroupManagersClient->setTargetPools($request);
        $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
{
    $instanceGroupManager = '[INSTANCE_GROUP_MANAGER]';
    $project = '[PROJECT]';
    $zone = '[ZONE]';

    set_target_pools_sample($instanceGroupManager, $project, $zone);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\OperationResponse;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\InstanceGroupManagersStartInstancesRequest;
use Google\Cloud\Compute\V1\StartInstancesInstanceGroupManagerRequest;
use Google\Rpc\Status;

/**
 * @param string $instanceGroupManager The name of the managed instance group.
 * @param string $project              Project ID for this request.
 * @param string $zone                 The name of the zone where the managed instance group is located.
 */
function start_instances_sample(string $instanceGroupManager, string $project, string $zone): void
{
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $instanceGroupManagersStartInstancesRequestResource = new InstanceGroupManagersStartInstancesRequest();
    $request = (new StartInstancesInstanceGroupManagerRequest())
        ->setInstanceGroupManager($instanceGroupManager)
        ->setInstanceGroupManagersStartInstancesRequestResource(
            $instanceGroupManagersStartInstancesRequestResource
        )
        ->setProject($project)
        ->setZone($zone);

    // Call the API and handle any network failures.
    try {
        /** @var OperationResponse $response */
        $response = $instanceGroupManagersClient->startInstances($request);
        $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
{
    $instanceGroupManager = '[INSTANCE_GROUP_MANAGER]';
    $project = '[PROJECT]';
    $zone = '[ZONE]';

    start_instances_sample($instanceGroupManager, $project, $zone);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\OperationResponse;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\InstanceGroupManagersStopInstancesRequest;
use Google\Cloud\Compute\V1\StopInstancesInstanceGroupManagerRequest;
use Google\Rpc\Status;

/**
 * @param string $instanceGroupManager The name of the managed instance group.
 * @param string $project              Project ID for this request.
 * @param string $zone                 The name of the zone where the managed instance group is located.
 */
function stop_instances_sample(string $instanceGroupManager, string $project, string $zone): void
{
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $instanceGroupManagersStopInstancesRequestResource = new InstanceGroupManagersStopInstancesRequest();
    $request = (new StopInstancesInstanceGroupManagerRequest())
        ->setInstanceGroupManager($instanceGroupManager)
        ->setInstanceGroupManagersStopInstancesRequestResource(
            $instanceGroupManagersStopInstancesRequestResource
        )
        ->setProject($project)
        ->setZone($zone);

    // Call the API and handle any network failures.
    try {
        /** @var OperationResponse $response */
        $response = $instanceGroupManagersClient->stopInstances($request);
        $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
{
    $instanceGroupManager = '[INSTANCE_GROUP_MANAGER]';
    $project = '[PROJECT]';
    $zone = '[ZONE]';

    stop_instances_sample($instanceGroupManager, $project, $zone);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\OperationResponse;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\InstanceGroupManagersSuspendInstancesRequest;
use Google\Cloud\Compute\V1\SuspendInstancesInstanceGroupManagerRequest;
use Google\Rpc\Status;

/**
 * @param string $instanceGroupManager The name of the managed instance group.
 * @param string $project              Project ID for this request.
 * @param string $zone                 The name of the zone where the managed instance group is located.
 */
function suspend_instances_sample(
    string $instanceGroupManager,
    string $project,
    string $zone
): void {
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $instanceGroupManagersSuspendInstancesRequestResource = new InstanceGroupManagersSuspendInstancesRequest();
    $request = (new SuspendInstancesInstanceGroupManagerRequest())
        ->setInstanceGroupManager($instanceGroupManager)
        ->setInstanceGroupManagersSuspendInstancesRequestResource(
            $instanceGroupManagersSuspendInstancesRequestResource
        )
        ->setProject($project)
        ->setZone($zone);

    // Call the API and handle any network failures.
    try {
        /** @var OperationResponse $response */
        $response = $instanceGroupManagersClient->suspendInstances($request);
        $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
{
    $instanceGroupManager = '[INSTANCE_GROUP_MANAGER]';
    $project = '[PROJECT]';
    $zone = '[ZONE]';

    suspend_instances_sample($instanceGroupManager, $project, $zone);
}

use Google\ApiCore\ApiException;
use Google\ApiCore\OperationResponse;
use Google\Cloud\Compute\V1\Client\InstanceGroupManagersClient;
use Google\Cloud\Compute\V1\InstanceGroupManagersUpdatePerInstanceConfigsReq;
use Google\Cloud\Compute\V1\UpdatePerInstanceConfigsInstanceGroupManagerRequest;
use Google\Rpc\Status;

/**
 * @param string $instanceGroupManager The name of the managed instance group. It should conform to RFC1035.
 * @param string $project              Project ID for this request.
 * @param string $zone                 The name of the zone where the managed instance group is located. It should conform to RFC1035.
 */
function update_per_instance_configs_sample(
    string $instanceGroupManager,
    string $project,
    string $zone
): void {
    // Create a client.
    $instanceGroupManagersClient = new InstanceGroupManagersClient();

    // Prepare the request message.
    $instanceGroupManagersUpdatePerInstanceConfigsReqResource = new InstanceGroupManagersUpdatePerInstanceConfigsReq();
    $request = (new UpdatePerInstanceConfigsInstanceGroupManagerRequest())
        ->setInstanceGroupManager($instanceGroupManager)
        ->setInstanceGroupManagersUpdatePerInstanceConfigsReqResource(
            $instanceGroupManagersUpdatePerInstanceConfigsReqResource
        )
        ->setProject($project)
        ->setZone($zone);

    // Call the API and handle any network failures.
    try {
        /** @var OperationResponse $response */
        $response = $instanceGroupManagersClient->updatePerInstanceConfigs($request);
        $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
{
    $instanceGroupManager = '[INSTANCE_GROUP_MANAGER]';
    $project = '[PROJECT]';
    $zone = '[ZONE]';

    update_per_instance_configs_sample($instanceGroupManager, $project, $zone);
}