diff --git a/samples/V2/ConfigServiceV2Client/copy_log_entries.php b/samples/V2/ConfigServiceV2Client/copy_log_entries.php
index 6f3d8ac..86ce66c 100644
--- a/samples/V2/ConfigServiceV2Client/copy_log_entries.php
+++ b/samples/V2/ConfigServiceV2Client/copy_log_entries.php
@@ -25,7 +25,8 @@
 // [START logging_v2_generated_ConfigServiceV2_CopyLogEntries_sync]
 use Google\ApiCore\ApiException;
 use Google\ApiCore\OperationResponse;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\CopyLogEntriesRequest;
 use Google\Cloud\Logging\V2\CopyLogEntriesResponse;
 use Google\Rpc\Status;
 
@@ -44,10 +45,15 @@ function copy_log_entries_sample(string $name, string $destination): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new CopyLogEntriesRequest())
+        ->setName($name)
+        ->setDestination($destination);
+
     // Call the API and handle any network failures.
     try {
         /** @var OperationResponse $response */
-        $response = $configServiceV2Client->copyLogEntries($name, $destination);
+        $response = $configServiceV2Client->copyLogEntries($request);
         $response->pollUntilComplete();
 
         if ($response->operationSucceeded()) {
diff --git a/samples/V2/ConfigServiceV2Client/create_bucket.php b/samples/V2/ConfigServiceV2Client/create_bucket.php
index c971f86..38b4679 100644
--- a/samples/V2/ConfigServiceV2Client/create_bucket.php
+++ b/samples/V2/ConfigServiceV2Client/create_bucket.php
@@ -24,7 +24,8 @@
 
 // [START logging_v2_generated_ConfigServiceV2_CreateBucket_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\CreateBucketRequest;
 use Google\Cloud\Logging\V2\LogBucket;
 
 /**
@@ -48,13 +49,17 @@ function create_bucket_sample(string $formattedParent, string $bucketId): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
-    // Prepare any non-scalar elements to be passed along with the request.
+    // Prepare the request message.
     $bucket = new LogBucket();
+    $request = (new CreateBucketRequest())
+        ->setParent($formattedParent)
+        ->setBucketId($bucketId)
+        ->setBucket($bucket);
 
     // Call the API and handle any network failures.
     try {
         /** @var LogBucket $response */
-        $response = $configServiceV2Client->createBucket($formattedParent, $bucketId, $bucket);
+        $response = $configServiceV2Client->createBucket($request);
         printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/ConfigServiceV2Client/create_bucket_async.php b/samples/V2/ConfigServiceV2Client/create_bucket_async.php
index 16ed755..0f2340e 100644
--- a/samples/V2/ConfigServiceV2Client/create_bucket_async.php
+++ b/samples/V2/ConfigServiceV2Client/create_bucket_async.php
@@ -25,7 +25,8 @@
 // [START logging_v2_generated_ConfigServiceV2_CreateBucketAsync_sync]
 use Google\ApiCore\ApiException;
 use Google\ApiCore\OperationResponse;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\CreateBucketRequest;
 use Google\Cloud\Logging\V2\LogBucket;
 use Google\Rpc\Status;
 
@@ -51,13 +52,17 @@ function create_bucket_async_sample(string $formattedParent, string $bucketId):
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
-    // Prepare any non-scalar elements to be passed along with the request.
+    // Prepare the request message.
     $bucket = new LogBucket();
+    $request = (new CreateBucketRequest())
+        ->setParent($formattedParent)
+        ->setBucketId($bucketId)
+        ->setBucket($bucket);
 
     // Call the API and handle any network failures.
     try {
         /** @var OperationResponse $response */
-        $response = $configServiceV2Client->createBucketAsync($formattedParent, $bucketId, $bucket);
+        $response = $configServiceV2Client->createBucketAsync($request);
         $response->pollUntilComplete();
 
         if ($response->operationSucceeded()) {
diff --git a/samples/V2/ConfigServiceV2Client/create_exclusion.php b/samples/V2/ConfigServiceV2Client/create_exclusion.php
index 6d72cda..379de71 100644
--- a/samples/V2/ConfigServiceV2Client/create_exclusion.php
+++ b/samples/V2/ConfigServiceV2Client/create_exclusion.php
@@ -24,7 +24,8 @@
 
 // [START logging_v2_generated_ConfigServiceV2_CreateExclusion_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\CreateExclusionRequest;
 use Google\Cloud\Logging\V2\LogExclusion;
 
 /**
@@ -67,15 +68,18 @@ function create_exclusion_sample(
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
-    // Prepare any non-scalar elements to be passed along with the request.
+    // Prepare the request message.
     $exclusion = (new LogExclusion())
         ->setName($exclusionName)
         ->setFilter($exclusionFilter);
+    $request = (new CreateExclusionRequest())
+        ->setParent($formattedParent)
+        ->setExclusion($exclusion);
 
     // Call the API and handle any network failures.
     try {
         /** @var LogExclusion $response */
-        $response = $configServiceV2Client->createExclusion($formattedParent, $exclusion);
+        $response = $configServiceV2Client->createExclusion($request);
         printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/ConfigServiceV2Client/create_link.php b/samples/V2/ConfigServiceV2Client/create_link.php
index 5a07608..9979034 100644
--- a/samples/V2/ConfigServiceV2Client/create_link.php
+++ b/samples/V2/ConfigServiceV2Client/create_link.php
@@ -25,7 +25,8 @@
 // [START logging_v2_generated_ConfigServiceV2_CreateLink_sync]
 use Google\ApiCore\ApiException;
 use Google\ApiCore\OperationResponse;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\CreateLinkRequest;
 use Google\Cloud\Logging\V2\Link;
 use Google\Rpc\Status;
 
@@ -50,13 +51,17 @@ function create_link_sample(string $formattedParent, string $linkId): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
-    // Prepare any non-scalar elements to be passed along with the request.
+    // Prepare the request message.
     $link = new Link();
+    $request = (new CreateLinkRequest())
+        ->setParent($formattedParent)
+        ->setLink($link)
+        ->setLinkId($linkId);
 
     // Call the API and handle any network failures.
     try {
         /** @var OperationResponse $response */
-        $response = $configServiceV2Client->createLink($formattedParent, $link, $linkId);
+        $response = $configServiceV2Client->createLink($request);
         $response->pollUntilComplete();
 
         if ($response->operationSucceeded()) {
diff --git a/samples/V2/ConfigServiceV2Client/create_sink.php b/samples/V2/ConfigServiceV2Client/create_sink.php
index 2843f70..93793d3 100644
--- a/samples/V2/ConfigServiceV2Client/create_sink.php
+++ b/samples/V2/ConfigServiceV2Client/create_sink.php
@@ -24,7 +24,8 @@
 
 // [START logging_v2_generated_ConfigServiceV2_CreateSink_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\CreateSinkRequest;
 use Google\Cloud\Logging\V2\LogSink;
 
 /**
@@ -71,15 +72,18 @@ function create_sink_sample(
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
-    // Prepare any non-scalar elements to be passed along with the request.
+    // Prepare the request message.
     $sink = (new LogSink())
         ->setName($sinkName)
         ->setDestination($sinkDestination);
+    $request = (new CreateSinkRequest())
+        ->setParent($formattedParent)
+        ->setSink($sink);
 
     // Call the API and handle any network failures.
     try {
         /** @var LogSink $response */
-        $response = $configServiceV2Client->createSink($formattedParent, $sink);
+        $response = $configServiceV2Client->createSink($request);
         printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/ConfigServiceV2Client/create_view.php b/samples/V2/ConfigServiceV2Client/create_view.php
index f9bd516..9baf851 100644
--- a/samples/V2/ConfigServiceV2Client/create_view.php
+++ b/samples/V2/ConfigServiceV2Client/create_view.php
@@ -24,7 +24,8 @@
 
 // [START logging_v2_generated_ConfigServiceV2_CreateView_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\CreateViewRequest;
 use Google\Cloud\Logging\V2\LogView;
 
 /**
@@ -47,13 +48,17 @@ function create_view_sample(string $parent, string $viewId): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
-    // Prepare any non-scalar elements to be passed along with the request.
+    // Prepare the request message.
     $view = new LogView();
+    $request = (new CreateViewRequest())
+        ->setParent($parent)
+        ->setViewId($viewId)
+        ->setView($view);
 
     // Call the API and handle any network failures.
     try {
         /** @var LogView $response */
-        $response = $configServiceV2Client->createView($parent, $viewId, $view);
+        $response = $configServiceV2Client->createView($request);
         printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/ConfigServiceV2Client/delete_bucket.php b/samples/V2/ConfigServiceV2Client/delete_bucket.php
index cef3af7..94aad84 100644
--- a/samples/V2/ConfigServiceV2Client/delete_bucket.php
+++ b/samples/V2/ConfigServiceV2Client/delete_bucket.php
@@ -24,7 +24,8 @@
 
 // [START logging_v2_generated_ConfigServiceV2_DeleteBucket_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\DeleteBucketRequest;
 
 /**
  * Deletes a log bucket.
@@ -50,9 +51,13 @@ function delete_bucket_sample(string $formattedName): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new DeleteBucketRequest())
+        ->setName($formattedName);
+
     // Call the API and handle any network failures.
     try {
-        $configServiceV2Client->deleteBucket($formattedName);
+        $configServiceV2Client->deleteBucket($request);
         printf('Call completed successfully.' . PHP_EOL);
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/ConfigServiceV2Client/delete_exclusion.php b/samples/V2/ConfigServiceV2Client/delete_exclusion.php
index 715a9d3..e0f1d0b 100644
--- a/samples/V2/ConfigServiceV2Client/delete_exclusion.php
+++ b/samples/V2/ConfigServiceV2Client/delete_exclusion.php
@@ -24,7 +24,8 @@
 
 // [START logging_v2_generated_ConfigServiceV2_DeleteExclusion_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\DeleteExclusionRequest;
 
 /**
  * Deletes an exclusion in the _Default sink.
@@ -46,9 +47,13 @@ function delete_exclusion_sample(string $formattedName): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new DeleteExclusionRequest())
+        ->setName($formattedName);
+
     // Call the API and handle any network failures.
     try {
-        $configServiceV2Client->deleteExclusion($formattedName);
+        $configServiceV2Client->deleteExclusion($request);
         printf('Call completed successfully.' . PHP_EOL);
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/ConfigServiceV2Client/delete_link.php b/samples/V2/ConfigServiceV2Client/delete_link.php
index e38a0f9..093a1e4 100644
--- a/samples/V2/ConfigServiceV2Client/delete_link.php
+++ b/samples/V2/ConfigServiceV2Client/delete_link.php
@@ -25,7 +25,8 @@
 // [START logging_v2_generated_ConfigServiceV2_DeleteLink_sync]
 use Google\ApiCore\ApiException;
 use Google\ApiCore\OperationResponse;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\DeleteLinkRequest;
 use Google\Rpc\Status;
 
 /**
@@ -45,10 +46,14 @@ function delete_link_sample(string $formattedName): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new DeleteLinkRequest())
+        ->setName($formattedName);
+
     // Call the API and handle any network failures.
     try {
         /** @var OperationResponse $response */
-        $response = $configServiceV2Client->deleteLink($formattedName);
+        $response = $configServiceV2Client->deleteLink($request);
         $response->pollUntilComplete();
 
         if ($response->operationSucceeded()) {
diff --git a/samples/V2/ConfigServiceV2Client/delete_sink.php b/samples/V2/ConfigServiceV2Client/delete_sink.php
index 315d324..bbf8229 100644
--- a/samples/V2/ConfigServiceV2Client/delete_sink.php
+++ b/samples/V2/ConfigServiceV2Client/delete_sink.php
@@ -24,7 +24,8 @@
 
 // [START logging_v2_generated_ConfigServiceV2_DeleteSink_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\DeleteSinkRequest;
 
 /**
  * Deletes a sink. If the sink has a unique `writer_identity`, then that
@@ -48,9 +49,13 @@ function delete_sink_sample(string $formattedSinkName): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new DeleteSinkRequest())
+        ->setSinkName($formattedSinkName);
+
     // Call the API and handle any network failures.
     try {
-        $configServiceV2Client->deleteSink($formattedSinkName);
+        $configServiceV2Client->deleteSink($request);
         printf('Call completed successfully.' . PHP_EOL);
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/ConfigServiceV2Client/delete_view.php b/samples/V2/ConfigServiceV2Client/delete_view.php
index c10b054..89e2fe4 100644
--- a/samples/V2/ConfigServiceV2Client/delete_view.php
+++ b/samples/V2/ConfigServiceV2Client/delete_view.php
@@ -24,7 +24,8 @@
 
 // [START logging_v2_generated_ConfigServiceV2_DeleteView_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\DeleteViewRequest;
 
 /**
  * Deletes a view on a log bucket.
@@ -46,9 +47,13 @@ function delete_view_sample(string $formattedName): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new DeleteViewRequest())
+        ->setName($formattedName);
+
     // Call the API and handle any network failures.
     try {
-        $configServiceV2Client->deleteView($formattedName);
+        $configServiceV2Client->deleteView($request);
         printf('Call completed successfully.' . PHP_EOL);
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/ConfigServiceV2Client/get_bucket.php b/samples/V2/ConfigServiceV2Client/get_bucket.php
index cb29177..8f560bc 100644
--- a/samples/V2/ConfigServiceV2Client/get_bucket.php
+++ b/samples/V2/ConfigServiceV2Client/get_bucket.php
@@ -24,7 +24,8 @@
 
 // [START logging_v2_generated_ConfigServiceV2_GetBucket_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\GetBucketRequest;
 use Google\Cloud\Logging\V2\LogBucket;
 
 /**
@@ -47,10 +48,14 @@ function get_bucket_sample(string $formattedName): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new GetBucketRequest())
+        ->setName($formattedName);
+
     // Call the API and handle any network failures.
     try {
         /** @var LogBucket $response */
-        $response = $configServiceV2Client->getBucket($formattedName);
+        $response = $configServiceV2Client->getBucket($request);
         printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/ConfigServiceV2Client/get_cmek_settings.php b/samples/V2/ConfigServiceV2Client/get_cmek_settings.php
index 3a59564..0fbf303 100644
--- a/samples/V2/ConfigServiceV2Client/get_cmek_settings.php
+++ b/samples/V2/ConfigServiceV2Client/get_cmek_settings.php
@@ -24,8 +24,9 @@
 
 // [START logging_v2_generated_ConfigServiceV2_GetCmekSettings_sync]
 use Google\ApiCore\ApiException;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
 use Google\Cloud\Logging\V2\CmekSettings;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\GetCmekSettingsRequest;
 
 /**
  * Gets the Logging CMEK settings for the given resource.
@@ -50,10 +51,13 @@ function get_cmek_settings_sample(): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
+    // Prepare the request message.
+    $request = new GetCmekSettingsRequest();
+
     // Call the API and handle any network failures.
     try {
         /** @var CmekSettings $response */
-        $response = $configServiceV2Client->getCmekSettings();
+        $response = $configServiceV2Client->getCmekSettings($request);
         printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/ConfigServiceV2Client/get_exclusion.php b/samples/V2/ConfigServiceV2Client/get_exclusion.php
index abb0d6b..144569e 100644
--- a/samples/V2/ConfigServiceV2Client/get_exclusion.php
+++ b/samples/V2/ConfigServiceV2Client/get_exclusion.php
@@ -24,7 +24,8 @@
 
 // [START logging_v2_generated_ConfigServiceV2_GetExclusion_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\GetExclusionRequest;
 use Google\Cloud\Logging\V2\LogExclusion;
 
 /**
@@ -47,10 +48,14 @@ function get_exclusion_sample(string $formattedName): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new GetExclusionRequest())
+        ->setName($formattedName);
+
     // Call the API and handle any network failures.
     try {
         /** @var LogExclusion $response */
-        $response = $configServiceV2Client->getExclusion($formattedName);
+        $response = $configServiceV2Client->getExclusion($request);
         printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/ConfigServiceV2Client/get_link.php b/samples/V2/ConfigServiceV2Client/get_link.php
index d0ab833..14a30b5 100644
--- a/samples/V2/ConfigServiceV2Client/get_link.php
+++ b/samples/V2/ConfigServiceV2Client/get_link.php
@@ -24,7 +24,8 @@
 
 // [START logging_v2_generated_ConfigServiceV2_GetLink_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\GetLinkRequest;
 use Google\Cloud\Logging\V2\Link;
 
 /**
@@ -43,10 +44,14 @@ function get_link_sample(string $formattedName): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new GetLinkRequest())
+        ->setName($formattedName);
+
     // Call the API and handle any network failures.
     try {
         /** @var Link $response */
-        $response = $configServiceV2Client->getLink($formattedName);
+        $response = $configServiceV2Client->getLink($request);
         printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/ConfigServiceV2Client/get_settings.php b/samples/V2/ConfigServiceV2Client/get_settings.php
index 0bd2ff6..2af0cdd 100644
--- a/samples/V2/ConfigServiceV2Client/get_settings.php
+++ b/samples/V2/ConfigServiceV2Client/get_settings.php
@@ -24,7 +24,8 @@
 
 // [START logging_v2_generated_ConfigServiceV2_GetSettings_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\GetSettingsRequest;
 use Google\Cloud\Logging\V2\Settings;
 
 /**
@@ -61,10 +62,14 @@ function get_settings_sample(string $formattedName): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new GetSettingsRequest())
+        ->setName($formattedName);
+
     // Call the API and handle any network failures.
     try {
         /** @var Settings $response */
-        $response = $configServiceV2Client->getSettings($formattedName);
+        $response = $configServiceV2Client->getSettings($request);
         printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/ConfigServiceV2Client/get_sink.php b/samples/V2/ConfigServiceV2Client/get_sink.php
index a9a96d8..ffdf3b8 100644
--- a/samples/V2/ConfigServiceV2Client/get_sink.php
+++ b/samples/V2/ConfigServiceV2Client/get_sink.php
@@ -24,7 +24,8 @@
 
 // [START logging_v2_generated_ConfigServiceV2_GetSink_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\GetSinkRequest;
 use Google\Cloud\Logging\V2\LogSink;
 
 /**
@@ -47,10 +48,14 @@ function get_sink_sample(string $formattedSinkName): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new GetSinkRequest())
+        ->setSinkName($formattedSinkName);
+
     // Call the API and handle any network failures.
     try {
         /** @var LogSink $response */
-        $response = $configServiceV2Client->getSink($formattedSinkName);
+        $response = $configServiceV2Client->getSink($request);
         printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/ConfigServiceV2Client/get_view.php b/samples/V2/ConfigServiceV2Client/get_view.php
index ae3cbe7..00e8e15 100644
--- a/samples/V2/ConfigServiceV2Client/get_view.php
+++ b/samples/V2/ConfigServiceV2Client/get_view.php
@@ -24,7 +24,8 @@
 
 // [START logging_v2_generated_ConfigServiceV2_GetView_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\GetViewRequest;
 use Google\Cloud\Logging\V2\LogView;
 
 /**
@@ -44,10 +45,14 @@ function get_view_sample(string $formattedName): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new GetViewRequest())
+        ->setName($formattedName);
+
     // Call the API and handle any network failures.
     try {
         /** @var LogView $response */
-        $response = $configServiceV2Client->getView($formattedName);
+        $response = $configServiceV2Client->getView($request);
         printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/ConfigServiceV2Client/list_buckets.php b/samples/V2/ConfigServiceV2Client/list_buckets.php
index e2cd223..31a9edb 100644
--- a/samples/V2/ConfigServiceV2Client/list_buckets.php
+++ b/samples/V2/ConfigServiceV2Client/list_buckets.php
@@ -25,7 +25,8 @@
 // [START logging_v2_generated_ConfigServiceV2_ListBuckets_sync]
 use Google\ApiCore\ApiException;
 use Google\ApiCore\PagedListResponse;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\ListBucketsRequest;
 use Google\Cloud\Logging\V2\LogBucket;
 
 /**
@@ -48,10 +49,14 @@ function list_buckets_sample(string $formattedParent): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new ListBucketsRequest())
+        ->setParent($formattedParent);
+
     // Call the API and handle any network failures.
     try {
         /** @var PagedListResponse $response */
-        $response = $configServiceV2Client->listBuckets($formattedParent);
+        $response = $configServiceV2Client->listBuckets($request);
 
         /** @var LogBucket $element */
         foreach ($response as $element) {
diff --git a/samples/V2/ConfigServiceV2Client/list_exclusions.php b/samples/V2/ConfigServiceV2Client/list_exclusions.php
index a27b65e..79d7c82 100644
--- a/samples/V2/ConfigServiceV2Client/list_exclusions.php
+++ b/samples/V2/ConfigServiceV2Client/list_exclusions.php
@@ -25,7 +25,8 @@
 // [START logging_v2_generated_ConfigServiceV2_ListExclusions_sync]
 use Google\ApiCore\ApiException;
 use Google\ApiCore\PagedListResponse;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\ListExclusionsRequest;
 use Google\Cloud\Logging\V2\LogExclusion;
 
 /**
@@ -44,10 +45,14 @@ function list_exclusions_sample(string $formattedParent): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new ListExclusionsRequest())
+        ->setParent($formattedParent);
+
     // Call the API and handle any network failures.
     try {
         /** @var PagedListResponse $response */
-        $response = $configServiceV2Client->listExclusions($formattedParent);
+        $response = $configServiceV2Client->listExclusions($request);
 
         /** @var LogExclusion $element */
         foreach ($response as $element) {
diff --git a/samples/V2/ConfigServiceV2Client/list_links.php b/samples/V2/ConfigServiceV2Client/list_links.php
index 481251d..3cdebf9 100644
--- a/samples/V2/ConfigServiceV2Client/list_links.php
+++ b/samples/V2/ConfigServiceV2Client/list_links.php
@@ -25,8 +25,9 @@
 // [START logging_v2_generated_ConfigServiceV2_ListLinks_sync]
 use Google\ApiCore\ApiException;
 use Google\ApiCore\PagedListResponse;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
 use Google\Cloud\Logging\V2\Link;
+use Google\Cloud\Logging\V2\ListLinksRequest;
 
 /**
  * Lists links.
@@ -44,10 +45,14 @@ function list_links_sample(string $formattedParent): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new ListLinksRequest())
+        ->setParent($formattedParent);
+
     // Call the API and handle any network failures.
     try {
         /** @var PagedListResponse $response */
-        $response = $configServiceV2Client->listLinks($formattedParent);
+        $response = $configServiceV2Client->listLinks($request);
 
         /** @var Link $element */
         foreach ($response as $element) {
diff --git a/samples/V2/ConfigServiceV2Client/list_sinks.php b/samples/V2/ConfigServiceV2Client/list_sinks.php
index 9cca12d..f17845e 100644
--- a/samples/V2/ConfigServiceV2Client/list_sinks.php
+++ b/samples/V2/ConfigServiceV2Client/list_sinks.php
@@ -25,7 +25,8 @@
 // [START logging_v2_generated_ConfigServiceV2_ListSinks_sync]
 use Google\ApiCore\ApiException;
 use Google\ApiCore\PagedListResponse;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\ListSinksRequest;
 use Google\Cloud\Logging\V2\LogSink;
 
 /**
@@ -44,10 +45,14 @@ function list_sinks_sample(string $formattedParent): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new ListSinksRequest())
+        ->setParent($formattedParent);
+
     // Call the API and handle any network failures.
     try {
         /** @var PagedListResponse $response */
-        $response = $configServiceV2Client->listSinks($formattedParent);
+        $response = $configServiceV2Client->listSinks($request);
 
         /** @var LogSink $element */
         foreach ($response as $element) {
diff --git a/samples/V2/ConfigServiceV2Client/list_views.php b/samples/V2/ConfigServiceV2Client/list_views.php
index d50346a..eb1adf3 100644
--- a/samples/V2/ConfigServiceV2Client/list_views.php
+++ b/samples/V2/ConfigServiceV2Client/list_views.php
@@ -25,7 +25,8 @@
 // [START logging_v2_generated_ConfigServiceV2_ListViews_sync]
 use Google\ApiCore\ApiException;
 use Google\ApiCore\PagedListResponse;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\ListViewsRequest;
 use Google\Cloud\Logging\V2\LogView;
 
 /**
@@ -40,10 +41,14 @@ function list_views_sample(string $parent): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new ListViewsRequest())
+        ->setParent($parent);
+
     // Call the API and handle any network failures.
     try {
         /** @var PagedListResponse $response */
-        $response = $configServiceV2Client->listViews($parent);
+        $response = $configServiceV2Client->listViews($request);
 
         /** @var LogView $element */
         foreach ($response as $element) {
diff --git a/samples/V2/ConfigServiceV2Client/undelete_bucket.php b/samples/V2/ConfigServiceV2Client/undelete_bucket.php
index 434f5ff..d2f652b 100644
--- a/samples/V2/ConfigServiceV2Client/undelete_bucket.php
+++ b/samples/V2/ConfigServiceV2Client/undelete_bucket.php
@@ -24,7 +24,8 @@
 
 // [START logging_v2_generated_ConfigServiceV2_UndeleteBucket_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\UndeleteBucketRequest;
 
 /**
  * Undeletes a log bucket. A bucket that has been deleted can be undeleted
@@ -47,9 +48,13 @@ function undelete_bucket_sample(string $formattedName): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new UndeleteBucketRequest())
+        ->setName($formattedName);
+
     // Call the API and handle any network failures.
     try {
-        $configServiceV2Client->undeleteBucket($formattedName);
+        $configServiceV2Client->undeleteBucket($request);
         printf('Call completed successfully.' . PHP_EOL);
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/ConfigServiceV2Client/update_bucket.php b/samples/V2/ConfigServiceV2Client/update_bucket.php
index 19453d6..73cc081 100644
--- a/samples/V2/ConfigServiceV2Client/update_bucket.php
+++ b/samples/V2/ConfigServiceV2Client/update_bucket.php
@@ -24,8 +24,9 @@
 
 // [START logging_v2_generated_ConfigServiceV2_UpdateBucket_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
 use Google\Cloud\Logging\V2\LogBucket;
+use Google\Cloud\Logging\V2\UpdateBucketRequest;
 use Google\Protobuf\FieldMask;
 
 /**
@@ -53,14 +54,18 @@ function update_bucket_sample(string $formattedName): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
-    // Prepare any non-scalar elements to be passed along with the request.
+    // Prepare the request message.
     $bucket = new LogBucket();
     $updateMask = new FieldMask();
+    $request = (new UpdateBucketRequest())
+        ->setName($formattedName)
+        ->setBucket($bucket)
+        ->setUpdateMask($updateMask);
 
     // Call the API and handle any network failures.
     try {
         /** @var LogBucket $response */
-        $response = $configServiceV2Client->updateBucket($formattedName, $bucket, $updateMask);
+        $response = $configServiceV2Client->updateBucket($request);
         printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/ConfigServiceV2Client/update_bucket_async.php b/samples/V2/ConfigServiceV2Client/update_bucket_async.php
index 54aacc0..e2b3b4e 100644
--- a/samples/V2/ConfigServiceV2Client/update_bucket_async.php
+++ b/samples/V2/ConfigServiceV2Client/update_bucket_async.php
@@ -25,8 +25,9 @@
 // [START logging_v2_generated_ConfigServiceV2_UpdateBucketAsync_sync]
 use Google\ApiCore\ApiException;
 use Google\ApiCore\OperationResponse;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
 use Google\Cloud\Logging\V2\LogBucket;
+use Google\Cloud\Logging\V2\UpdateBucketRequest;
 use Google\Protobuf\FieldMask;
 use Google\Rpc\Status;
 
@@ -55,14 +56,18 @@ function update_bucket_async_sample(string $formattedName): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
-    // Prepare any non-scalar elements to be passed along with the request.
+    // Prepare the request message.
     $bucket = new LogBucket();
     $updateMask = new FieldMask();
+    $request = (new UpdateBucketRequest())
+        ->setName($formattedName)
+        ->setBucket($bucket)
+        ->setUpdateMask($updateMask);
 
     // Call the API and handle any network failures.
     try {
         /** @var OperationResponse $response */
-        $response = $configServiceV2Client->updateBucketAsync($formattedName, $bucket, $updateMask);
+        $response = $configServiceV2Client->updateBucketAsync($request);
         $response->pollUntilComplete();
 
         if ($response->operationSucceeded()) {
diff --git a/samples/V2/ConfigServiceV2Client/update_cmek_settings.php b/samples/V2/ConfigServiceV2Client/update_cmek_settings.php
index 616c79d..d066b30 100644
--- a/samples/V2/ConfigServiceV2Client/update_cmek_settings.php
+++ b/samples/V2/ConfigServiceV2Client/update_cmek_settings.php
@@ -24,8 +24,9 @@
 
 // [START logging_v2_generated_ConfigServiceV2_UpdateCmekSettings_sync]
 use Google\ApiCore\ApiException;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
 use Google\Cloud\Logging\V2\CmekSettings;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\UpdateCmekSettingsRequest;
 
 /**
  * Updates the Log Router CMEK settings for the given resource.
@@ -55,10 +56,13 @@ function update_cmek_settings_sample(): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
+    // Prepare the request message.
+    $request = new UpdateCmekSettingsRequest();
+
     // Call the API and handle any network failures.
     try {
         /** @var CmekSettings $response */
-        $response = $configServiceV2Client->updateCmekSettings();
+        $response = $configServiceV2Client->updateCmekSettings($request);
         printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/ConfigServiceV2Client/update_exclusion.php b/samples/V2/ConfigServiceV2Client/update_exclusion.php
index ba14369..b140246 100644
--- a/samples/V2/ConfigServiceV2Client/update_exclusion.php
+++ b/samples/V2/ConfigServiceV2Client/update_exclusion.php
@@ -24,8 +24,9 @@
 
 // [START logging_v2_generated_ConfigServiceV2_UpdateExclusion_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
 use Google\Cloud\Logging\V2\LogExclusion;
+use Google\Cloud\Logging\V2\UpdateExclusionRequest;
 use Google\Protobuf\FieldMask;
 
 /**
@@ -66,16 +67,20 @@ function update_exclusion_sample(
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
-    // Prepare any non-scalar elements to be passed along with the request.
+    // Prepare the request message.
     $exclusion = (new LogExclusion())
         ->setName($exclusionName)
         ->setFilter($exclusionFilter);
     $updateMask = new FieldMask();
+    $request = (new UpdateExclusionRequest())
+        ->setName($formattedName)
+        ->setExclusion($exclusion)
+        ->setUpdateMask($updateMask);
 
     // Call the API and handle any network failures.
     try {
         /** @var LogExclusion $response */
-        $response = $configServiceV2Client->updateExclusion($formattedName, $exclusion, $updateMask);
+        $response = $configServiceV2Client->updateExclusion($request);
         printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/ConfigServiceV2Client/update_settings.php b/samples/V2/ConfigServiceV2Client/update_settings.php
index 69f8366..152b5fc 100644
--- a/samples/V2/ConfigServiceV2Client/update_settings.php
+++ b/samples/V2/ConfigServiceV2Client/update_settings.php
@@ -24,8 +24,9 @@
 
 // [START logging_v2_generated_ConfigServiceV2_UpdateSettings_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
 use Google\Cloud\Logging\V2\Settings;
+use Google\Cloud\Logging\V2\UpdateSettingsRequest;
 
 /**
  * Updates the Log Router settings for the given resource.
@@ -62,13 +63,16 @@ function update_settings_sample(string $name): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
-    // Prepare any non-scalar elements to be passed along with the request.
+    // Prepare the request message.
     $settings = new Settings();
+    $request = (new UpdateSettingsRequest())
+        ->setName($name)
+        ->setSettings($settings);
 
     // Call the API and handle any network failures.
     try {
         /** @var Settings $response */
-        $response = $configServiceV2Client->updateSettings($name, $settings);
+        $response = $configServiceV2Client->updateSettings($request);
         printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/ConfigServiceV2Client/update_sink.php b/samples/V2/ConfigServiceV2Client/update_sink.php
index f750e8e..20d3352 100644
--- a/samples/V2/ConfigServiceV2Client/update_sink.php
+++ b/samples/V2/ConfigServiceV2Client/update_sink.php
@@ -24,8 +24,9 @@
 
 // [START logging_v2_generated_ConfigServiceV2_UpdateSink_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
 use Google\Cloud\Logging\V2\LogSink;
+use Google\Cloud\Logging\V2\UpdateSinkRequest;
 
 /**
  * Updates a sink. This method replaces the following fields in the existing
@@ -72,15 +73,18 @@ function update_sink_sample(
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
-    // Prepare any non-scalar elements to be passed along with the request.
+    // Prepare the request message.
     $sink = (new LogSink())
         ->setName($sinkName)
         ->setDestination($sinkDestination);
+    $request = (new UpdateSinkRequest())
+        ->setSinkName($formattedSinkName)
+        ->setSink($sink);
 
     // Call the API and handle any network failures.
     try {
         /** @var LogSink $response */
-        $response = $configServiceV2Client->updateSink($formattedSinkName, $sink);
+        $response = $configServiceV2Client->updateSink($request);
         printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/ConfigServiceV2Client/update_view.php b/samples/V2/ConfigServiceV2Client/update_view.php
index 9903a63..c08f95e 100644
--- a/samples/V2/ConfigServiceV2Client/update_view.php
+++ b/samples/V2/ConfigServiceV2Client/update_view.php
@@ -24,8 +24,9 @@
 
 // [START logging_v2_generated_ConfigServiceV2_UpdateView_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\ConfigServiceV2Client;
+use Google\Cloud\Logging\V2\Client\ConfigServiceV2Client;
 use Google\Cloud\Logging\V2\LogView;
+use Google\Cloud\Logging\V2\UpdateViewRequest;
 
 /**
  * Updates a view on a log bucket. This method replaces the following fields
@@ -47,13 +48,16 @@ function update_view_sample(string $name): void
     // Create a client.
     $configServiceV2Client = new ConfigServiceV2Client();
 
-    // Prepare any non-scalar elements to be passed along with the request.
+    // Prepare the request message.
     $view = new LogView();
+    $request = (new UpdateViewRequest())
+        ->setName($name)
+        ->setView($view);
 
     // Call the API and handle any network failures.
     try {
         /** @var LogView $response */
-        $response = $configServiceV2Client->updateView($name, $view);
+        $response = $configServiceV2Client->updateView($request);
         printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/LoggingServiceV2Client/delete_log.php b/samples/V2/LoggingServiceV2Client/delete_log.php
index f31e2ea..333cc98 100644
--- a/samples/V2/LoggingServiceV2Client/delete_log.php
+++ b/samples/V2/LoggingServiceV2Client/delete_log.php
@@ -24,7 +24,8 @@
 
 // [START logging_v2_generated_LoggingServiceV2_DeleteLog_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\LoggingServiceV2Client;
+use Google\Cloud\Logging\V2\Client\LoggingServiceV2Client;
+use Google\Cloud\Logging\V2\DeleteLogRequest;
 
 /**
  * Deletes all the log entries in a log for the _Default Log Bucket. The log
@@ -52,9 +53,13 @@ function delete_log_sample(string $formattedLogName): void
     // Create a client.
     $loggingServiceV2Client = new LoggingServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new DeleteLogRequest())
+        ->setLogName($formattedLogName);
+
     // Call the API and handle any network failures.
     try {
-        $loggingServiceV2Client->deleteLog($formattedLogName);
+        $loggingServiceV2Client->deleteLog($request);
         printf('Call completed successfully.' . PHP_EOL);
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/LoggingServiceV2Client/list_log_entries.php b/samples/V2/LoggingServiceV2Client/list_log_entries.php
index 7980ec2..d2e1a4e 100644
--- a/samples/V2/LoggingServiceV2Client/list_log_entries.php
+++ b/samples/V2/LoggingServiceV2Client/list_log_entries.php
@@ -25,8 +25,9 @@
 // [START logging_v2_generated_LoggingServiceV2_ListLogEntries_sync]
 use Google\ApiCore\ApiException;
 use Google\ApiCore\PagedListResponse;
+use Google\Cloud\Logging\V2\Client\LoggingServiceV2Client;
+use Google\Cloud\Logging\V2\ListLogEntriesRequest;
 use Google\Cloud\Logging\V2\LogEntry;
-use Google\Cloud\Logging\V2\LoggingServiceV2Client;
 
 /**
  * Lists log entries.  Use this method to retrieve log entries that originated
@@ -58,13 +59,15 @@ function list_log_entries_sample(string $formattedResourceNamesElement): void
     // Create a client.
     $loggingServiceV2Client = new LoggingServiceV2Client();
 
-    // Prepare any non-scalar elements to be passed along with the request.
+    // Prepare the request message.
     $formattedResourceNames = [$formattedResourceNamesElement,];
+    $request = (new ListLogEntriesRequest())
+        ->setResourceNames($formattedResourceNames);
 
     // Call the API and handle any network failures.
     try {
         /** @var PagedListResponse $response */
-        $response = $loggingServiceV2Client->listLogEntries($formattedResourceNames);
+        $response = $loggingServiceV2Client->listLogEntries($request);
 
         /** @var LogEntry $element */
         foreach ($response as $element) {
diff --git a/samples/V2/LoggingServiceV2Client/list_logs.php b/samples/V2/LoggingServiceV2Client/list_logs.php
index 277a1b5..0bbdf50 100644
--- a/samples/V2/LoggingServiceV2Client/list_logs.php
+++ b/samples/V2/LoggingServiceV2Client/list_logs.php
@@ -25,7 +25,8 @@
 // [START logging_v2_generated_LoggingServiceV2_ListLogs_sync]
 use Google\ApiCore\ApiException;
 use Google\ApiCore\PagedListResponse;
-use Google\Cloud\Logging\V2\LoggingServiceV2Client;
+use Google\Cloud\Logging\V2\Client\LoggingServiceV2Client;
+use Google\Cloud\Logging\V2\ListLogsRequest;
 
 /**
  * Lists the logs in projects, organizations, folders, or billing accounts.
@@ -44,10 +45,14 @@ function list_logs_sample(string $formattedParent): void
     // Create a client.
     $loggingServiceV2Client = new LoggingServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new ListLogsRequest())
+        ->setParent($formattedParent);
+
     // Call the API and handle any network failures.
     try {
         /** @var PagedListResponse $response */
-        $response = $loggingServiceV2Client->listLogs($formattedParent);
+        $response = $loggingServiceV2Client->listLogs($request);
 
         /** @var string $element */
         foreach ($response as $element) {
diff --git a/samples/V2/LoggingServiceV2Client/list_monitored_resource_descriptors.php b/samples/V2/LoggingServiceV2Client/list_monitored_resource_descriptors.php
index 1c3044f..7a86f6f 100644
--- a/samples/V2/LoggingServiceV2Client/list_monitored_resource_descriptors.php
+++ b/samples/V2/LoggingServiceV2Client/list_monitored_resource_descriptors.php
@@ -26,7 +26,8 @@
 use Google\ApiCore\ApiException;
 use Google\ApiCore\PagedListResponse;
 use Google\Api\MonitoredResourceDescriptor;
-use Google\Cloud\Logging\V2\LoggingServiceV2Client;
+use Google\Cloud\Logging\V2\Client\LoggingServiceV2Client;
+use Google\Cloud\Logging\V2\ListMonitoredResourceDescriptorsRequest;
 
 /**
  * Lists the descriptors for monitored resource types used by Logging.
@@ -42,10 +43,13 @@ function list_monitored_resource_descriptors_sample(): void
     // Create a client.
     $loggingServiceV2Client = new LoggingServiceV2Client();
 
+    // Prepare the request message.
+    $request = new ListMonitoredResourceDescriptorsRequest();
+
     // Call the API and handle any network failures.
     try {
         /** @var PagedListResponse $response */
-        $response = $loggingServiceV2Client->listMonitoredResourceDescriptors();
+        $response = $loggingServiceV2Client->listMonitoredResourceDescriptors($request);
 
         /** @var MonitoredResourceDescriptor $element */
         foreach ($response as $element) {
diff --git a/samples/V2/LoggingServiceV2Client/tail_log_entries.php b/samples/V2/LoggingServiceV2Client/tail_log_entries.php
index 12bbfcc..86b5a2a 100644
--- a/samples/V2/LoggingServiceV2Client/tail_log_entries.php
+++ b/samples/V2/LoggingServiceV2Client/tail_log_entries.php
@@ -25,7 +25,7 @@
 // [START logging_v2_generated_LoggingServiceV2_TailLogEntries_sync]
 use Google\ApiCore\ApiException;
 use Google\ApiCore\BidiStream;
-use Google\Cloud\Logging\V2\LoggingServiceV2Client;
+use Google\Cloud\Logging\V2\Client\LoggingServiceV2Client;
 use Google\Cloud\Logging\V2\TailLogEntriesRequest;
 use Google\Cloud\Logging\V2\TailLogEntriesResponse;
 
@@ -52,7 +52,7 @@ function tail_log_entries_sample(string $resourceNamesElement): void
     // Create a client.
     $loggingServiceV2Client = new LoggingServiceV2Client();
 
-    // Prepare any non-scalar elements to be passed along with the request.
+    // Prepare the request message.
     $resourceNames = [$resourceNamesElement,];
     $request = (new TailLogEntriesRequest())
         ->setResourceNames($resourceNames);
diff --git a/samples/V2/LoggingServiceV2Client/write_log_entries.php b/samples/V2/LoggingServiceV2Client/write_log_entries.php
index 5188358..89af306 100644
--- a/samples/V2/LoggingServiceV2Client/write_log_entries.php
+++ b/samples/V2/LoggingServiceV2Client/write_log_entries.php
@@ -25,8 +25,9 @@
 // [START logging_v2_generated_LoggingServiceV2_WriteLogEntries_sync]
 use Google\ApiCore\ApiException;
 use Google\Api\MonitoredResource;
+use Google\Cloud\Logging\V2\Client\LoggingServiceV2Client;
 use Google\Cloud\Logging\V2\LogEntry;
-use Google\Cloud\Logging\V2\LoggingServiceV2Client;
+use Google\Cloud\Logging\V2\WriteLogEntriesRequest;
 use Google\Cloud\Logging\V2\WriteLogEntriesResponse;
 
 /**
@@ -67,17 +68,19 @@ function write_log_entries_sample(string $entriesLogName): void
     // Create a client.
     $loggingServiceV2Client = new LoggingServiceV2Client();
 
-    // Prepare any non-scalar elements to be passed along with the request.
+    // Prepare the request message.
     $entriesResource = new MonitoredResource();
     $logEntry = (new LogEntry())
         ->setLogName($entriesLogName)
         ->setResource($entriesResource);
     $entries = [$logEntry,];
+    $request = (new WriteLogEntriesRequest())
+        ->setEntries($entries);
 
     // Call the API and handle any network failures.
     try {
         /** @var WriteLogEntriesResponse $response */
-        $response = $loggingServiceV2Client->writeLogEntries($entries);
+        $response = $loggingServiceV2Client->writeLogEntries($request);
         printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/MetricsServiceV2Client/create_log_metric.php b/samples/V2/MetricsServiceV2Client/create_log_metric.php
index b68d569..0396fd1 100644
--- a/samples/V2/MetricsServiceV2Client/create_log_metric.php
+++ b/samples/V2/MetricsServiceV2Client/create_log_metric.php
@@ -24,8 +24,9 @@
 
 // [START logging_v2_generated_MetricsServiceV2_CreateLogMetric_sync]
 use Google\ApiCore\ApiException;
+use Google\Cloud\Logging\V2\Client\MetricsServiceV2Client;
+use Google\Cloud\Logging\V2\CreateLogMetricRequest;
 use Google\Cloud\Logging\V2\LogMetric;
-use Google\Cloud\Logging\V2\MetricsServiceV2Client;
 
 /**
  * Creates a logs-based metric.
@@ -65,15 +66,18 @@ function create_log_metric_sample(
     // Create a client.
     $metricsServiceV2Client = new MetricsServiceV2Client();
 
-    // Prepare any non-scalar elements to be passed along with the request.
+    // Prepare the request message.
     $metric = (new LogMetric())
         ->setName($metricName)
         ->setFilter($metricFilter);
+    $request = (new CreateLogMetricRequest())
+        ->setParent($formattedParent)
+        ->setMetric($metric);
 
     // Call the API and handle any network failures.
     try {
         /** @var LogMetric $response */
-        $response = $metricsServiceV2Client->createLogMetric($formattedParent, $metric);
+        $response = $metricsServiceV2Client->createLogMetric($request);
         printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/MetricsServiceV2Client/delete_log_metric.php b/samples/V2/MetricsServiceV2Client/delete_log_metric.php
index 5e9ee16..6acbe48 100644
--- a/samples/V2/MetricsServiceV2Client/delete_log_metric.php
+++ b/samples/V2/MetricsServiceV2Client/delete_log_metric.php
@@ -24,7 +24,8 @@
 
 // [START logging_v2_generated_MetricsServiceV2_DeleteLogMetric_sync]
 use Google\ApiCore\ApiException;
-use Google\Cloud\Logging\V2\MetricsServiceV2Client;
+use Google\Cloud\Logging\V2\Client\MetricsServiceV2Client;
+use Google\Cloud\Logging\V2\DeleteLogMetricRequest;
 
 /**
  * Deletes a logs-based metric.
@@ -39,9 +40,13 @@ function delete_log_metric_sample(string $formattedMetricName): void
     // Create a client.
     $metricsServiceV2Client = new MetricsServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new DeleteLogMetricRequest())
+        ->setMetricName($formattedMetricName);
+
     // Call the API and handle any network failures.
     try {
-        $metricsServiceV2Client->deleteLogMetric($formattedMetricName);
+        $metricsServiceV2Client->deleteLogMetric($request);
         printf('Call completed successfully.' . PHP_EOL);
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/MetricsServiceV2Client/get_log_metric.php b/samples/V2/MetricsServiceV2Client/get_log_metric.php
index 302f110..f436349 100644
--- a/samples/V2/MetricsServiceV2Client/get_log_metric.php
+++ b/samples/V2/MetricsServiceV2Client/get_log_metric.php
@@ -24,8 +24,9 @@
 
 // [START logging_v2_generated_MetricsServiceV2_GetLogMetric_sync]
 use Google\ApiCore\ApiException;
+use Google\Cloud\Logging\V2\Client\MetricsServiceV2Client;
+use Google\Cloud\Logging\V2\GetLogMetricRequest;
 use Google\Cloud\Logging\V2\LogMetric;
-use Google\Cloud\Logging\V2\MetricsServiceV2Client;
 
 /**
  * Gets a logs-based metric.
@@ -40,10 +41,14 @@ function get_log_metric_sample(string $formattedMetricName): void
     // Create a client.
     $metricsServiceV2Client = new MetricsServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new GetLogMetricRequest())
+        ->setMetricName($formattedMetricName);
+
     // Call the API and handle any network failures.
     try {
         /** @var LogMetric $response */
-        $response = $metricsServiceV2Client->getLogMetric($formattedMetricName);
+        $response = $metricsServiceV2Client->getLogMetric($request);
         printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/samples/V2/MetricsServiceV2Client/list_log_metrics.php b/samples/V2/MetricsServiceV2Client/list_log_metrics.php
index 20d45ce..bc387b9 100644
--- a/samples/V2/MetricsServiceV2Client/list_log_metrics.php
+++ b/samples/V2/MetricsServiceV2Client/list_log_metrics.php
@@ -25,8 +25,9 @@
 // [START logging_v2_generated_MetricsServiceV2_ListLogMetrics_sync]
 use Google\ApiCore\ApiException;
 use Google\ApiCore\PagedListResponse;
+use Google\Cloud\Logging\V2\Client\MetricsServiceV2Client;
+use Google\Cloud\Logging\V2\ListLogMetricsRequest;
 use Google\Cloud\Logging\V2\LogMetric;
-use Google\Cloud\Logging\V2\MetricsServiceV2Client;
 
 /**
  * Lists logs-based metrics.
@@ -41,10 +42,14 @@ function list_log_metrics_sample(string $formattedParent): void
     // Create a client.
     $metricsServiceV2Client = new MetricsServiceV2Client();
 
+    // Prepare the request message.
+    $request = (new ListLogMetricsRequest())
+        ->setParent($formattedParent);
+
     // Call the API and handle any network failures.
     try {
         /** @var PagedListResponse $response */
-        $response = $metricsServiceV2Client->listLogMetrics($formattedParent);
+        $response = $metricsServiceV2Client->listLogMetrics($request);
 
         /** @var LogMetric $element */
         foreach ($response as $element) {
diff --git a/samples/V2/MetricsServiceV2Client/update_log_metric.php b/samples/V2/MetricsServiceV2Client/update_log_metric.php
index a507db8..13a674a 100644
--- a/samples/V2/MetricsServiceV2Client/update_log_metric.php
+++ b/samples/V2/MetricsServiceV2Client/update_log_metric.php
@@ -24,8 +24,9 @@
 
 // [START logging_v2_generated_MetricsServiceV2_UpdateLogMetric_sync]
 use Google\ApiCore\ApiException;
+use Google\Cloud\Logging\V2\Client\MetricsServiceV2Client;
 use Google\Cloud\Logging\V2\LogMetric;
-use Google\Cloud\Logging\V2\MetricsServiceV2Client;
+use Google\Cloud\Logging\V2\UpdateLogMetricRequest;
 
 /**
  * Creates or updates a logs-based metric.
@@ -67,15 +68,18 @@ function update_log_metric_sample(
     // Create a client.
     $metricsServiceV2Client = new MetricsServiceV2Client();
 
-    // Prepare any non-scalar elements to be passed along with the request.
+    // Prepare the request message.
     $metric = (new LogMetric())
         ->setName($metricName)
         ->setFilter($metricFilter);
+    $request = (new UpdateLogMetricRequest())
+        ->setMetricName($formattedMetricName)
+        ->setMetric($metric);
 
     // Call the API and handle any network failures.
     try {
         /** @var LogMetric $response */
-        $response = $metricsServiceV2Client->updateLogMetric($formattedMetricName, $metric);
+        $response = $metricsServiceV2Client->updateLogMetric($request);
         printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
     } catch (ApiException $ex) {
         printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
diff --git a/src/V2/Client/ConfigServiceV2Client.php b/src/V2/Client/ConfigServiceV2Client.php
index 3133b52..9e2cf87 100644
--- a/src/V2/Client/ConfigServiceV2Client.php
+++ b/src/V2/Client/ConfigServiceV2Client.php
@@ -1097,6 +1097,8 @@ public function __call($method, $args)
      *
      * The async variant is {@see ConfigServiceV2Client::copyLogEntriesAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/copy_log_entries.php
+     *
      * @param CopyLogEntriesRequest $request     A request to house fields associated with the call.
      * @param array                 $callOptions {
      *     Optional.
@@ -1122,6 +1124,8 @@ public function copyLogEntries(CopyLogEntriesRequest $request, array $callOption
      *
      * The async variant is {@see ConfigServiceV2Client::createBucketAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/create_bucket.php
+     *
      * @param CreateBucketRequest $request     A request to house fields associated with the call.
      * @param array               $callOptions {
      *     Optional.
@@ -1148,6 +1152,8 @@ public function createBucket(CreateBucketRequest $request, array $callOptions =
      *
      * The async variant is {@see ConfigServiceV2Client::createBucketAsyncAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/create_bucket_async.php
+     *
      * @param CreateBucketRequest $request     A request to house fields associated with the call.
      * @param array               $callOptions {
      *     Optional.
@@ -1174,6 +1180,8 @@ public function createBucketAsync(CreateBucketRequest $request, array $callOptio
      *
      * The async variant is {@see ConfigServiceV2Client::createExclusionAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/create_exclusion.php
+     *
      * @param CreateExclusionRequest $request     A request to house fields associated with the call.
      * @param array                  $callOptions {
      *     Optional.
@@ -1200,6 +1208,8 @@ public function createExclusion(CreateExclusionRequest $request, array $callOpti
      *
      * The async variant is {@see ConfigServiceV2Client::createLinkAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/create_link.php
+     *
      * @param CreateLinkRequest $request     A request to house fields associated with the call.
      * @param array             $callOptions {
      *     Optional.
@@ -1227,6 +1237,8 @@ public function createLink(CreateLinkRequest $request, array $callOptions = []):
      *
      * The async variant is {@see ConfigServiceV2Client::createSinkAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/create_sink.php
+     *
      * @param CreateSinkRequest $request     A request to house fields associated with the call.
      * @param array             $callOptions {
      *     Optional.
@@ -1252,6 +1264,8 @@ public function createSink(CreateSinkRequest $request, array $callOptions = []):
      *
      * The async variant is {@see ConfigServiceV2Client::createViewAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/create_view.php
+     *
      * @param CreateViewRequest $request     A request to house fields associated with the call.
      * @param array             $callOptions {
      *     Optional.
@@ -1280,6 +1294,8 @@ public function createView(CreateViewRequest $request, array $callOptions = []):
      *
      * The async variant is {@see ConfigServiceV2Client::deleteBucketAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/delete_bucket.php
+     *
      * @param DeleteBucketRequest $request     A request to house fields associated with the call.
      * @param array               $callOptions {
      *     Optional.
@@ -1302,6 +1318,8 @@ public function deleteBucket(DeleteBucketRequest $request, array $callOptions =
      *
      * The async variant is {@see ConfigServiceV2Client::deleteExclusionAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/delete_exclusion.php
+     *
      * @param DeleteExclusionRequest $request     A request to house fields associated with the call.
      * @param array                  $callOptions {
      *     Optional.
@@ -1325,6 +1343,8 @@ public function deleteExclusion(DeleteExclusionRequest $request, array $callOpti
      *
      * The async variant is {@see ConfigServiceV2Client::deleteLinkAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/delete_link.php
+     *
      * @param DeleteLinkRequest $request     A request to house fields associated with the call.
      * @param array             $callOptions {
      *     Optional.
@@ -1350,6 +1370,8 @@ public function deleteLink(DeleteLinkRequest $request, array $callOptions = []):
      *
      * The async variant is {@see ConfigServiceV2Client::deleteSinkAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/delete_sink.php
+     *
      * @param DeleteSinkRequest $request     A request to house fields associated with the call.
      * @param array             $callOptions {
      *     Optional.
@@ -1375,6 +1397,8 @@ public function deleteSink(DeleteSinkRequest $request, array $callOptions = []):
      *
      * The async variant is {@see ConfigServiceV2Client::deleteViewAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/delete_view.php
+     *
      * @param DeleteViewRequest $request     A request to house fields associated with the call.
      * @param array             $callOptions {
      *     Optional.
@@ -1397,6 +1421,8 @@ public function deleteView(DeleteViewRequest $request, array $callOptions = []):
      *
      * The async variant is {@see ConfigServiceV2Client::getBucketAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/get_bucket.php
+     *
      * @param GetBucketRequest $request     A request to house fields associated with the call.
      * @param array            $callOptions {
      *     Optional.
@@ -1430,6 +1456,8 @@ public function getBucket(GetBucketRequest $request, array $callOptions = []): L
      *
      * The async variant is {@see ConfigServiceV2Client::getCmekSettingsAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/get_cmek_settings.php
+     *
      * @param GetCmekSettingsRequest $request     A request to house fields associated with the call.
      * @param array                  $callOptions {
      *     Optional.
@@ -1454,6 +1482,8 @@ public function getCmekSettings(GetCmekSettingsRequest $request, array $callOpti
      *
      * The async variant is {@see ConfigServiceV2Client::getExclusionAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/get_exclusion.php
+     *
      * @param GetExclusionRequest $request     A request to house fields associated with the call.
      * @param array               $callOptions {
      *     Optional.
@@ -1478,6 +1508,8 @@ public function getExclusion(GetExclusionRequest $request, array $callOptions =
      *
      * The async variant is {@see ConfigServiceV2Client::getLinkAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/get_link.php
+     *
      * @param GetLinkRequest $request     A request to house fields associated with the call.
      * @param array          $callOptions {
      *     Optional.
@@ -1511,6 +1543,8 @@ public function getLink(GetLinkRequest $request, array $callOptions = []): Link
      *
      * The async variant is {@see ConfigServiceV2Client::getSettingsAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/get_settings.php
+     *
      * @param GetSettingsRequest $request     A request to house fields associated with the call.
      * @param array              $callOptions {
      *     Optional.
@@ -1535,6 +1569,8 @@ public function getSettings(GetSettingsRequest $request, array $callOptions = []
      *
      * The async variant is {@see ConfigServiceV2Client::getSinkAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/get_sink.php
+     *
      * @param GetSinkRequest $request     A request to house fields associated with the call.
      * @param array          $callOptions {
      *     Optional.
@@ -1559,6 +1595,8 @@ public function getSink(GetSinkRequest $request, array $callOptions = []): LogSi
      *
      * The async variant is {@see ConfigServiceV2Client::getViewAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/get_view.php
+     *
      * @param GetViewRequest $request     A request to house fields associated with the call.
      * @param array          $callOptions {
      *     Optional.
@@ -1583,6 +1621,8 @@ public function getView(GetViewRequest $request, array $callOptions = []): LogVi
      *
      * The async variant is {@see ConfigServiceV2Client::listBucketsAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/list_buckets.php
+     *
      * @param ListBucketsRequest $request     A request to house fields associated with the call.
      * @param array              $callOptions {
      *     Optional.
@@ -1607,6 +1647,8 @@ public function listBuckets(ListBucketsRequest $request, array $callOptions = []
      *
      * The async variant is {@see ConfigServiceV2Client::listExclusionsAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/list_exclusions.php
+     *
      * @param ListExclusionsRequest $request     A request to house fields associated with the call.
      * @param array                 $callOptions {
      *     Optional.
@@ -1631,6 +1673,8 @@ public function listExclusions(ListExclusionsRequest $request, array $callOption
      *
      * The async variant is {@see ConfigServiceV2Client::listLinksAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/list_links.php
+     *
      * @param ListLinksRequest $request     A request to house fields associated with the call.
      * @param array            $callOptions {
      *     Optional.
@@ -1655,6 +1699,8 @@ public function listLinks(ListLinksRequest $request, array $callOptions = []): P
      *
      * The async variant is {@see ConfigServiceV2Client::listSinksAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/list_sinks.php
+     *
      * @param ListSinksRequest $request     A request to house fields associated with the call.
      * @param array            $callOptions {
      *     Optional.
@@ -1679,6 +1725,8 @@ public function listSinks(ListSinksRequest $request, array $callOptions = []): P
      *
      * The async variant is {@see ConfigServiceV2Client::listViewsAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/list_views.php
+     *
      * @param ListViewsRequest $request     A request to house fields associated with the call.
      * @param array            $callOptions {
      *     Optional.
@@ -1704,6 +1752,8 @@ public function listViews(ListViewsRequest $request, array $callOptions = []): P
      *
      * The async variant is {@see ConfigServiceV2Client::undeleteBucketAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/undelete_bucket.php
+     *
      * @param UndeleteBucketRequest $request     A request to house fields associated with the call.
      * @param array                 $callOptions {
      *     Optional.
@@ -1731,6 +1781,8 @@ public function undeleteBucket(UndeleteBucketRequest $request, array $callOption
      *
      * The async variant is {@see ConfigServiceV2Client::updateBucketAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/update_bucket.php
+     *
      * @param UpdateBucketRequest $request     A request to house fields associated with the call.
      * @param array               $callOptions {
      *     Optional.
@@ -1760,6 +1812,8 @@ public function updateBucket(UpdateBucketRequest $request, array $callOptions =
      *
      * The async variant is {@see ConfigServiceV2Client::updateBucketAsyncAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/update_bucket_async.php
+     *
      * @param UpdateBucketRequest $request     A request to house fields associated with the call.
      * @param array               $callOptions {
      *     Optional.
@@ -1798,6 +1852,8 @@ public function updateBucketAsync(UpdateBucketRequest $request, array $callOptio
      *
      * The async variant is {@see ConfigServiceV2Client::updateCmekSettingsAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/update_cmek_settings.php
+     *
      * @param UpdateCmekSettingsRequest $request     A request to house fields associated with the call.
      * @param array                     $callOptions {
      *     Optional.
@@ -1823,6 +1879,8 @@ public function updateCmekSettings(UpdateCmekSettingsRequest $request, array $ca
      *
      * The async variant is {@see ConfigServiceV2Client::updateExclusionAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/update_exclusion.php
+     *
      * @param UpdateExclusionRequest $request     A request to house fields associated with the call.
      * @param array                  $callOptions {
      *     Optional.
@@ -1862,6 +1920,8 @@ public function updateExclusion(UpdateExclusionRequest $request, array $callOpti
      *
      * The async variant is {@see ConfigServiceV2Client::updateSettingsAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/update_settings.php
+     *
      * @param UpdateSettingsRequest $request     A request to house fields associated with the call.
      * @param array                 $callOptions {
      *     Optional.
@@ -1890,6 +1950,8 @@ public function updateSettings(UpdateSettingsRequest $request, array $callOption
      *
      * The async variant is {@see ConfigServiceV2Client::updateSinkAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/update_sink.php
+     *
      * @param UpdateSinkRequest $request     A request to house fields associated with the call.
      * @param array             $callOptions {
      *     Optional.
@@ -1918,6 +1980,8 @@ public function updateSink(UpdateSinkRequest $request, array $callOptions = []):
      *
      * The async variant is {@see ConfigServiceV2Client::updateViewAsync()} .
      *
+     * @example samples/V2/ConfigServiceV2Client/update_view.php
+     *
      * @param UpdateViewRequest $request     A request to house fields associated with the call.
      * @param array             $callOptions {
      *     Optional.
diff --git a/src/V2/Client/LoggingServiceV2Client.php b/src/V2/Client/LoggingServiceV2Client.php
index 713f52a..ecb9a20 100644
--- a/src/V2/Client/LoggingServiceV2Client.php
+++ b/src/V2/Client/LoggingServiceV2Client.php
@@ -367,6 +367,8 @@ public function __call($method, $args)
      *
      * The async variant is {@see LoggingServiceV2Client::deleteLogAsync()} .
      *
+     * @example samples/V2/LoggingServiceV2Client/delete_log.php
+     *
      * @param DeleteLogRequest $request     A request to house fields associated with the call.
      * @param array            $callOptions {
      *     Optional.
@@ -392,6 +394,8 @@ public function deleteLog(DeleteLogRequest $request, array $callOptions = []): v
      *
      * The async variant is {@see LoggingServiceV2Client::listLogEntriesAsync()} .
      *
+     * @example samples/V2/LoggingServiceV2Client/list_log_entries.php
+     *
      * @param ListLogEntriesRequest $request     A request to house fields associated with the call.
      * @param array                 $callOptions {
      *     Optional.
@@ -417,6 +421,8 @@ public function listLogEntries(ListLogEntriesRequest $request, array $callOption
      *
      * The async variant is {@see LoggingServiceV2Client::listLogsAsync()} .
      *
+     * @example samples/V2/LoggingServiceV2Client/list_logs.php
+     *
      * @param ListLogsRequest $request     A request to house fields associated with the call.
      * @param array           $callOptions {
      *     Optional.
@@ -442,6 +448,8 @@ public function listLogs(ListLogsRequest $request, array $callOptions = []): Pag
      * The async variant is
      * {@see LoggingServiceV2Client::listMonitoredResourceDescriptorsAsync()} .
      *
+     * @example samples/V2/LoggingServiceV2Client/list_monitored_resource_descriptors.php
+     *
      * @param ListMonitoredResourceDescriptorsRequest $request     A request to house fields associated with the call.
      * @param array                                   $callOptions {
      *     Optional.
@@ -465,6 +473,8 @@ public function listMonitoredResourceDescriptors(ListMonitoredResourceDescriptor
      * Streaming read of log entries as they are ingested. Until the stream is
      * terminated, it will continue reading logs.
      *
+     * @example samples/V2/LoggingServiceV2Client/tail_log_entries.php
+     *
      * @param array $callOptions {
      *     Optional.
      *
@@ -492,6 +502,8 @@ public function tailLogEntries(array $callOptions = []): BidiStream
      *
      * The async variant is {@see LoggingServiceV2Client::writeLogEntriesAsync()} .
      *
+     * @example samples/V2/LoggingServiceV2Client/write_log_entries.php
+     *
      * @param WriteLogEntriesRequest $request     A request to house fields associated with the call.
      * @param array                  $callOptions {
      *     Optional.
diff --git a/src/V2/Client/MetricsServiceV2Client.php b/src/V2/Client/MetricsServiceV2Client.php
index 8da4f7a..fda16a0 100644
--- a/src/V2/Client/MetricsServiceV2Client.php
+++ b/src/V2/Client/MetricsServiceV2Client.php
@@ -243,6 +243,8 @@ public function __call($method, $args)
      *
      * The async variant is {@see MetricsServiceV2Client::createLogMetricAsync()} .
      *
+     * @example samples/V2/MetricsServiceV2Client/create_log_metric.php
+     *
      * @param CreateLogMetricRequest $request     A request to house fields associated with the call.
      * @param array                  $callOptions {
      *     Optional.
@@ -267,6 +269,8 @@ public function createLogMetric(CreateLogMetricRequest $request, array $callOpti
      *
      * The async variant is {@see MetricsServiceV2Client::deleteLogMetricAsync()} .
      *
+     * @example samples/V2/MetricsServiceV2Client/delete_log_metric.php
+     *
      * @param DeleteLogMetricRequest $request     A request to house fields associated with the call.
      * @param array                  $callOptions {
      *     Optional.
@@ -289,6 +293,8 @@ public function deleteLogMetric(DeleteLogMetricRequest $request, array $callOpti
      *
      * The async variant is {@see MetricsServiceV2Client::getLogMetricAsync()} .
      *
+     * @example samples/V2/MetricsServiceV2Client/get_log_metric.php
+     *
      * @param GetLogMetricRequest $request     A request to house fields associated with the call.
      * @param array               $callOptions {
      *     Optional.
@@ -313,6 +319,8 @@ public function getLogMetric(GetLogMetricRequest $request, array $callOptions =
      *
      * The async variant is {@see MetricsServiceV2Client::listLogMetricsAsync()} .
      *
+     * @example samples/V2/MetricsServiceV2Client/list_log_metrics.php
+     *
      * @param ListLogMetricsRequest $request     A request to house fields associated with the call.
      * @param array                 $callOptions {
      *     Optional.
@@ -337,6 +345,8 @@ public function listLogMetrics(ListLogMetricsRequest $request, array $callOption
      *
      * The async variant is {@see MetricsServiceV2Client::updateLogMetricAsync()} .
      *
+     * @example samples/V2/MetricsServiceV2Client/update_log_metric.php
+     *
      * @param UpdateLogMetricRequest $request     A request to house fields associated with the call.
      * @param array                  $callOptions {
      *     Optional.