diff --git a/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/attach_trust.php b/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/attach_trust.php
deleted file mode 100644
index 9103480a40c0..000000000000
--- a/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/attach_trust.php
+++ /dev/null
@@ -1,83 +0,0 @@
-<?php
-/*
- * Copyright 2022 Google LLC
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * GENERATED CODE WARNING
- * This file was automatically generated - do not edit!
- */
-
-require_once __DIR__ . '/../../../vendor/autoload.php';
-
-// [START managedidentities_v1beta1_generated_ManagedIdentitiesService_AttachTrust_sync]
-use Google\ApiCore\ApiException;
-use Google\ApiCore\OperationResponse;
-use Google\Cloud\ManagedIdentities\V1beta1\Domain;
-use Google\Cloud\ManagedIdentities\V1beta1\ManagedIdentitiesServiceClient;
-use Google\Cloud\ManagedIdentities\V1beta1\Trust;
-use Google\Rpc\Status;
-
-/**
- * Adds an AD trust to a domain.
- *
- * @param string $formattedName The resource domain name, project name and location using the form:
- *                              `projects/{project_id}/locations/global/domains/{domain_name}`
- *                              Please see {@see ManagedIdentitiesServiceClient::domainName()} for help formatting this field.
- */
-function attach_trust_sample(string $formattedName): void
-{
-    // Create a client.
-    $managedIdentitiesServiceClient = new ManagedIdentitiesServiceClient();
-
-    // Prepare any non-scalar elements to be passed along with the request.
-    $trust = new Trust();
-
-    // Call the API and handle any network failures.
-    try {
-        /** @var OperationResponse $response */
-        $response = $managedIdentitiesServiceClient->attachTrust($formattedName, $trust);
-        $response->pollUntilComplete();
-
-        if ($response->operationSucceeded()) {
-            /** @var Domain $result */
-            $result = $response->getResult();
-            printf('Operation successful with response data: %s' . PHP_EOL, $result->serializeToJsonString());
-        } 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
-{
-    $formattedName = ManagedIdentitiesServiceClient::domainName('[PROJECT]', '[LOCATION]', '[DOMAIN]');
-
-    attach_trust_sample($formattedName);
-}
-// [END managedidentities_v1beta1_generated_ManagedIdentitiesService_AttachTrust_sync]
diff --git a/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/create_microsoft_ad_domain.php b/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/create_microsoft_ad_domain.php
deleted file mode 100644
index 4aacd51307df..000000000000
--- a/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/create_microsoft_ad_domain.php
+++ /dev/null
@@ -1,120 +0,0 @@
-<?php
-/*
- * Copyright 2022 Google LLC
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * GENERATED CODE WARNING
- * This file was automatically generated - do not edit!
- */
-
-require_once __DIR__ . '/../../../vendor/autoload.php';
-
-// [START managedidentities_v1beta1_generated_ManagedIdentitiesService_CreateMicrosoftAdDomain_sync]
-use Google\ApiCore\ApiException;
-use Google\ApiCore\OperationResponse;
-use Google\Cloud\ManagedIdentities\V1beta1\Domain;
-use Google\Cloud\ManagedIdentities\V1beta1\ManagedIdentitiesServiceClient;
-use Google\Rpc\Status;
-
-/**
- * Creates a Microsoft AD domain.
- *
- * @param string $formattedParent        The resource project name and location using the form:
- *                                       `projects/{project_id}/locations/global`
- *                                       Please see {@see ManagedIdentitiesServiceClient::locationName()} for help formatting this field.
- * @param string $domainName             A domain name, e.g. mydomain.myorg.com, with the following restrictions:
- *                                       * Must contain only lowercase letters, numbers, periods and hyphens.
- *                                       * Must start with a letter.
- *                                       * Must contain between 2-64 characters.
- *                                       * Must end with a number or a letter.
- *                                       * Must not start with period.
- *                                       * First segment length (mydomain form example above) shouldn't exceed
- *                                       15 chars.
- *                                       * The last segment cannot be fully numeric.
- *                                       * Must be unique within the customer project.
- * @param string $domainReservedIpRange  The CIDR range of internal addresses that are reserved for this
- *                                       domain. Reserved networks must be /24 or larger. Ranges must be
- *                                       unique and non-overlapping with existing subnets in
- *                                       [Domain].[authorized_networks].
- * @param string $domainLocationsElement Locations where domain needs to be provisioned.
- *                                       [regions][compute/docs/regions-zones/]
- *                                       e.g. us-west1 or us-east4
- *                                       Service supports up to 4 locations at once. Each location will use a /26
- *                                       block.
- */
-function create_microsoft_ad_domain_sample(
-    string $formattedParent,
-    string $domainName,
-    string $domainReservedIpRange,
-    string $domainLocationsElement
-): void {
-    // Create a client.
-    $managedIdentitiesServiceClient = new ManagedIdentitiesServiceClient();
-
-    // Prepare any non-scalar elements to be passed along with the request.
-    $domainLocations = [$domainLocationsElement,];
-    $domain = (new Domain())
-        ->setReservedIpRange($domainReservedIpRange)
-        ->setLocations($domainLocations);
-
-    // Call the API and handle any network failures.
-    try {
-        /** @var OperationResponse $response */
-        $response = $managedIdentitiesServiceClient->createMicrosoftAdDomain(
-            $formattedParent,
-            $domainName,
-            $domain
-        );
-        $response->pollUntilComplete();
-
-        if ($response->operationSucceeded()) {
-            /** @var Domain $result */
-            $result = $response->getResult();
-            printf('Operation successful with response data: %s' . PHP_EOL, $result->serializeToJsonString());
-        } 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
-{
-    $formattedParent = ManagedIdentitiesServiceClient::locationName('[PROJECT]', '[LOCATION]');
-    $domainName = '[DOMAIN_NAME]';
-    $domainReservedIpRange = '[RESERVED_IP_RANGE]';
-    $domainLocationsElement = '[LOCATIONS]';
-
-    create_microsoft_ad_domain_sample(
-        $formattedParent,
-        $domainName,
-        $domainReservedIpRange,
-        $domainLocationsElement
-    );
-}
-// [END managedidentities_v1beta1_generated_ManagedIdentitiesService_CreateMicrosoftAdDomain_sync]
diff --git a/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/delete_domain.php b/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/delete_domain.php
deleted file mode 100644
index 698174799c2b..000000000000
--- a/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/delete_domain.php
+++ /dev/null
@@ -1,76 +0,0 @@
-<?php
-/*
- * Copyright 2022 Google LLC
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * GENERATED CODE WARNING
- * This file was automatically generated - do not edit!
- */
-
-require_once __DIR__ . '/../../../vendor/autoload.php';
-
-// [START managedidentities_v1beta1_generated_ManagedIdentitiesService_DeleteDomain_sync]
-use Google\ApiCore\ApiException;
-use Google\ApiCore\OperationResponse;
-use Google\Cloud\ManagedIdentities\V1beta1\ManagedIdentitiesServiceClient;
-use Google\Rpc\Status;
-
-/**
- * Deletes a domain.
- *
- * @param string $formattedName The domain resource name using the form:
- *                              `projects/{project_id}/locations/global/domains/{domain_name}`
- *                              Please see {@see ManagedIdentitiesServiceClient::domainName()} for help formatting this field.
- */
-function delete_domain_sample(string $formattedName): void
-{
-    // Create a client.
-    $managedIdentitiesServiceClient = new ManagedIdentitiesServiceClient();
-
-    // Call the API and handle any network failures.
-    try {
-        /** @var OperationResponse $response */
-        $response = $managedIdentitiesServiceClient->deleteDomain($formattedName);
-        $response->pollUntilComplete();
-
-        if ($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
-{
-    $formattedName = ManagedIdentitiesServiceClient::domainName('[PROJECT]', '[LOCATION]', '[DOMAIN]');
-
-    delete_domain_sample($formattedName);
-}
-// [END managedidentities_v1beta1_generated_ManagedIdentitiesService_DeleteDomain_sync]
diff --git a/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/detach_trust.php b/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/detach_trust.php
deleted file mode 100644
index 4ccee53e7fb9..000000000000
--- a/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/detach_trust.php
+++ /dev/null
@@ -1,83 +0,0 @@
-<?php
-/*
- * Copyright 2022 Google LLC
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * GENERATED CODE WARNING
- * This file was automatically generated - do not edit!
- */
-
-require_once __DIR__ . '/../../../vendor/autoload.php';
-
-// [START managedidentities_v1beta1_generated_ManagedIdentitiesService_DetachTrust_sync]
-use Google\ApiCore\ApiException;
-use Google\ApiCore\OperationResponse;
-use Google\Cloud\ManagedIdentities\V1beta1\Domain;
-use Google\Cloud\ManagedIdentities\V1beta1\ManagedIdentitiesServiceClient;
-use Google\Cloud\ManagedIdentities\V1beta1\Trust;
-use Google\Rpc\Status;
-
-/**
- * Removes an AD trust.
- *
- * @param string $formattedName The resource domain name, project name, and location using the form:
- *                              `projects/{project_id}/locations/global/domains/{domain_name}`
- *                              Please see {@see ManagedIdentitiesServiceClient::domainName()} for help formatting this field.
- */
-function detach_trust_sample(string $formattedName): void
-{
-    // Create a client.
-    $managedIdentitiesServiceClient = new ManagedIdentitiesServiceClient();
-
-    // Prepare any non-scalar elements to be passed along with the request.
-    $trust = new Trust();
-
-    // Call the API and handle any network failures.
-    try {
-        /** @var OperationResponse $response */
-        $response = $managedIdentitiesServiceClient->detachTrust($formattedName, $trust);
-        $response->pollUntilComplete();
-
-        if ($response->operationSucceeded()) {
-            /** @var Domain $result */
-            $result = $response->getResult();
-            printf('Operation successful with response data: %s' . PHP_EOL, $result->serializeToJsonString());
-        } 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
-{
-    $formattedName = ManagedIdentitiesServiceClient::domainName('[PROJECT]', '[LOCATION]', '[DOMAIN]');
-
-    detach_trust_sample($formattedName);
-}
-// [END managedidentities_v1beta1_generated_ManagedIdentitiesService_DetachTrust_sync]
diff --git a/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/get_domain.php b/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/get_domain.php
deleted file mode 100644
index e2ce44527496..000000000000
--- a/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/get_domain.php
+++ /dev/null
@@ -1,67 +0,0 @@
-<?php
-/*
- * Copyright 2022 Google LLC
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * GENERATED CODE WARNING
- * This file was automatically generated - do not edit!
- */
-
-require_once __DIR__ . '/../../../vendor/autoload.php';
-
-// [START managedidentities_v1beta1_generated_ManagedIdentitiesService_GetDomain_sync]
-use Google\ApiCore\ApiException;
-use Google\Cloud\ManagedIdentities\V1beta1\Domain;
-use Google\Cloud\ManagedIdentities\V1beta1\ManagedIdentitiesServiceClient;
-
-/**
- * Gets information about a domain.
- *
- * @param string $formattedName The domain resource name using the form:
- *                              `projects/{project_id}/locations/global/domains/{domain_name}`
- *                              Please see {@see ManagedIdentitiesServiceClient::domainName()} for help formatting this field.
- */
-function get_domain_sample(string $formattedName): void
-{
-    // Create a client.
-    $managedIdentitiesServiceClient = new ManagedIdentitiesServiceClient();
-
-    // Call the API and handle any network failures.
-    try {
-        /** @var Domain $response */
-        $response = $managedIdentitiesServiceClient->getDomain($formattedName);
-        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
-{
-    $formattedName = ManagedIdentitiesServiceClient::domainName('[PROJECT]', '[LOCATION]', '[DOMAIN]');
-
-    get_domain_sample($formattedName);
-}
-// [END managedidentities_v1beta1_generated_ManagedIdentitiesService_GetDomain_sync]
diff --git a/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/list_domains.php b/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/list_domains.php
deleted file mode 100644
index 37b6e982096d..000000000000
--- a/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/list_domains.php
+++ /dev/null
@@ -1,72 +0,0 @@
-<?php
-/*
- * Copyright 2022 Google LLC
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * GENERATED CODE WARNING
- * This file was automatically generated - do not edit!
- */
-
-require_once __DIR__ . '/../../../vendor/autoload.php';
-
-// [START managedidentities_v1beta1_generated_ManagedIdentitiesService_ListDomains_sync]
-use Google\ApiCore\ApiException;
-use Google\ApiCore\PagedListResponse;
-use Google\Cloud\ManagedIdentities\V1beta1\Domain;
-use Google\Cloud\ManagedIdentities\V1beta1\ManagedIdentitiesServiceClient;
-
-/**
- * Lists domains in a project.
- *
- * @param string $formattedParent The resource name of the domain location using the form:
- *                                `projects/{project_id}/locations/global`
- *                                Please see {@see ManagedIdentitiesServiceClient::locationName()} for help formatting this field.
- */
-function list_domains_sample(string $formattedParent): void
-{
-    // Create a client.
-    $managedIdentitiesServiceClient = new ManagedIdentitiesServiceClient();
-
-    // Call the API and handle any network failures.
-    try {
-        /** @var PagedListResponse $response */
-        $response = $managedIdentitiesServiceClient->listDomains($formattedParent);
-
-        /** @var Domain $element */
-        foreach ($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
-{
-    $formattedParent = ManagedIdentitiesServiceClient::locationName('[PROJECT]', '[LOCATION]');
-
-    list_domains_sample($formattedParent);
-}
-// [END managedidentities_v1beta1_generated_ManagedIdentitiesService_ListDomains_sync]
diff --git a/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/reconfigure_trust.php b/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/reconfigure_trust.php
deleted file mode 100644
index b4bb764a5cda..000000000000
--- a/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/reconfigure_trust.php
+++ /dev/null
@@ -1,95 +0,0 @@
-<?php
-/*
- * Copyright 2022 Google LLC
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * GENERATED CODE WARNING
- * This file was automatically generated - do not edit!
- */
-
-require_once __DIR__ . '/../../../vendor/autoload.php';
-
-// [START managedidentities_v1beta1_generated_ManagedIdentitiesService_ReconfigureTrust_sync]
-use Google\ApiCore\ApiException;
-use Google\ApiCore\OperationResponse;
-use Google\Cloud\ManagedIdentities\V1beta1\Domain;
-use Google\Cloud\ManagedIdentities\V1beta1\ManagedIdentitiesServiceClient;
-use Google\Rpc\Status;
-
-/**
- * Updates the DNS conditional forwarder.
- *
- * @param string $formattedName               The resource domain name, project name and location using the form:
- *                                            `projects/{project_id}/locations/global/domains/{domain_name}`
- *                                            Please see {@see ManagedIdentitiesServiceClient::domainName()} for help formatting this field.
- * @param string $targetDomainName            The fully-qualified target domain name which will be in trust with current
- *                                            domain.
- * @param string $targetDnsIpAddressesElement The target DNS server IP addresses to resolve the remote domain involved
- *                                            in the trust.
- */
-function reconfigure_trust_sample(
-    string $formattedName,
-    string $targetDomainName,
-    string $targetDnsIpAddressesElement
-): void {
-    // Create a client.
-    $managedIdentitiesServiceClient = new ManagedIdentitiesServiceClient();
-
-    // Prepare any non-scalar elements to be passed along with the request.
-    $targetDnsIpAddresses = [$targetDnsIpAddressesElement,];
-
-    // Call the API and handle any network failures.
-    try {
-        /** @var OperationResponse $response */
-        $response = $managedIdentitiesServiceClient->reconfigureTrust(
-            $formattedName,
-            $targetDomainName,
-            $targetDnsIpAddresses
-        );
-        $response->pollUntilComplete();
-
-        if ($response->operationSucceeded()) {
-            /** @var Domain $result */
-            $result = $response->getResult();
-            printf('Operation successful with response data: %s' . PHP_EOL, $result->serializeToJsonString());
-        } 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
-{
-    $formattedName = ManagedIdentitiesServiceClient::domainName('[PROJECT]', '[LOCATION]', '[DOMAIN]');
-    $targetDomainName = '[TARGET_DOMAIN_NAME]';
-    $targetDnsIpAddressesElement = '[TARGET_DNS_IP_ADDRESSES]';
-
-    reconfigure_trust_sample($formattedName, $targetDomainName, $targetDnsIpAddressesElement);
-}
-// [END managedidentities_v1beta1_generated_ManagedIdentitiesService_ReconfigureTrust_sync]
diff --git a/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/reset_admin_password.php b/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/reset_admin_password.php
deleted file mode 100644
index 29bd45d29d17..000000000000
--- a/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/reset_admin_password.php
+++ /dev/null
@@ -1,67 +0,0 @@
-<?php
-/*
- * Copyright 2022 Google LLC
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * GENERATED CODE WARNING
- * This file was automatically generated - do not edit!
- */
-
-require_once __DIR__ . '/../../../vendor/autoload.php';
-
-// [START managedidentities_v1beta1_generated_ManagedIdentitiesService_ResetAdminPassword_sync]
-use Google\ApiCore\ApiException;
-use Google\Cloud\ManagedIdentities\V1beta1\ManagedIdentitiesServiceClient;
-use Google\Cloud\ManagedIdentities\V1beta1\ResetAdminPasswordResponse;
-
-/**
- * Resets a domain's administrator password.
- *
- * @param string $formattedName The domain resource name using the form:
- *                              `projects/{project_id}/locations/global/domains/{domain_name}`
- *                              Please see {@see ManagedIdentitiesServiceClient::domainName()} for help formatting this field.
- */
-function reset_admin_password_sample(string $formattedName): void
-{
-    // Create a client.
-    $managedIdentitiesServiceClient = new ManagedIdentitiesServiceClient();
-
-    // Call the API and handle any network failures.
-    try {
-        /** @var ResetAdminPasswordResponse $response */
-        $response = $managedIdentitiesServiceClient->resetAdminPassword($formattedName);
-        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
-{
-    $formattedName = ManagedIdentitiesServiceClient::domainName('[PROJECT]', '[LOCATION]', '[DOMAIN]');
-
-    reset_admin_password_sample($formattedName);
-}
-// [END managedidentities_v1beta1_generated_ManagedIdentitiesService_ResetAdminPassword_sync]
diff --git a/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/update_domain.php b/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/update_domain.php
deleted file mode 100644
index 86849800639b..000000000000
--- a/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/update_domain.php
+++ /dev/null
@@ -1,94 +0,0 @@
-<?php
-/*
- * Copyright 2022 Google LLC
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * GENERATED CODE WARNING
- * This file was automatically generated - do not edit!
- */
-
-require_once __DIR__ . '/../../../vendor/autoload.php';
-
-// [START managedidentities_v1beta1_generated_ManagedIdentitiesService_UpdateDomain_sync]
-use Google\ApiCore\ApiException;
-use Google\ApiCore\OperationResponse;
-use Google\Cloud\ManagedIdentities\V1beta1\Domain;
-use Google\Cloud\ManagedIdentities\V1beta1\ManagedIdentitiesServiceClient;
-use Google\Protobuf\FieldMask;
-use Google\Rpc\Status;
-
-/**
- * Updates the metadata and configuration of a domain.
- *
- * @param string $domainReservedIpRange  The CIDR range of internal addresses that are reserved for this
- *                                       domain. Reserved networks must be /24 or larger. Ranges must be
- *                                       unique and non-overlapping with existing subnets in
- *                                       [Domain].[authorized_networks].
- * @param string $domainLocationsElement Locations where domain needs to be provisioned.
- *                                       [regions][compute/docs/regions-zones/]
- *                                       e.g. us-west1 or us-east4
- *                                       Service supports up to 4 locations at once. Each location will use a /26
- *                                       block.
- */
-function update_domain_sample(string $domainReservedIpRange, string $domainLocationsElement): void
-{
-    // Create a client.
-    $managedIdentitiesServiceClient = new ManagedIdentitiesServiceClient();
-
-    // Prepare any non-scalar elements to be passed along with the request.
-    $updateMask = new FieldMask();
-    $domainLocations = [$domainLocationsElement,];
-    $domain = (new Domain())
-        ->setReservedIpRange($domainReservedIpRange)
-        ->setLocations($domainLocations);
-
-    // Call the API and handle any network failures.
-    try {
-        /** @var OperationResponse $response */
-        $response = $managedIdentitiesServiceClient->updateDomain($updateMask, $domain);
-        $response->pollUntilComplete();
-
-        if ($response->operationSucceeded()) {
-            /** @var Domain $result */
-            $result = $response->getResult();
-            printf('Operation successful with response data: %s' . PHP_EOL, $result->serializeToJsonString());
-        } 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
-{
-    $domainReservedIpRange = '[RESERVED_IP_RANGE]';
-    $domainLocationsElement = '[LOCATIONS]';
-
-    update_domain_sample($domainReservedIpRange, $domainLocationsElement);
-}
-// [END managedidentities_v1beta1_generated_ManagedIdentitiesService_UpdateDomain_sync]
diff --git a/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/validate_trust.php b/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/validate_trust.php
deleted file mode 100644
index 3cb0e8f4c0c3..000000000000
--- a/ManagedIdentities/samples/V1beta1/ManagedIdentitiesServiceClient/validate_trust.php
+++ /dev/null
@@ -1,84 +0,0 @@
-<?php
-/*
- * Copyright 2022 Google LLC
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * GENERATED CODE WARNING
- * This file was automatically generated - do not edit!
- */
-
-require_once __DIR__ . '/../../../vendor/autoload.php';
-
-// [START managedidentities_v1beta1_generated_ManagedIdentitiesService_ValidateTrust_sync]
-use Google\ApiCore\ApiException;
-use Google\ApiCore\OperationResponse;
-use Google\Cloud\ManagedIdentities\V1beta1\Domain;
-use Google\Cloud\ManagedIdentities\V1beta1\ManagedIdentitiesServiceClient;
-use Google\Cloud\ManagedIdentities\V1beta1\Trust;
-use Google\Rpc\Status;
-
-/**
- * Validates a trust state, that the target domain is reachable, and that the
- * target domain is able to accept incoming trust requests.
- *
- * @param string $formattedName The resource domain name, project name, and location using the form:
- *                              `projects/{project_id}/locations/global/domains/{domain_name}`
- *                              Please see {@see ManagedIdentitiesServiceClient::domainName()} for help formatting this field.
- */
-function validate_trust_sample(string $formattedName): void
-{
-    // Create a client.
-    $managedIdentitiesServiceClient = new ManagedIdentitiesServiceClient();
-
-    // Prepare any non-scalar elements to be passed along with the request.
-    $trust = new Trust();
-
-    // Call the API and handle any network failures.
-    try {
-        /** @var OperationResponse $response */
-        $response = $managedIdentitiesServiceClient->validateTrust($formattedName, $trust);
-        $response->pollUntilComplete();
-
-        if ($response->operationSucceeded()) {
-            /** @var Domain $result */
-            $result = $response->getResult();
-            printf('Operation successful with response data: %s' . PHP_EOL, $result->serializeToJsonString());
-        } 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
-{
-    $formattedName = ManagedIdentitiesServiceClient::domainName('[PROJECT]', '[LOCATION]', '[DOMAIN]');
-
-    validate_trust_sample($formattedName);
-}
-// [END managedidentities_v1beta1_generated_ManagedIdentitiesService_ValidateTrust_sync]