feat: [AiPlatform] Add asyncQueryReasoningEngine to aiplatform v1 API (#9106)

* feat: Model Registry CopyModel BYOSA

PiperOrigin-RevId: 899215526

Source-Link: googleapis/googleapis@62e4ecb

Source-Link: googleapis/googleapis-gen@1363385
Copy-Tag: eyJwIjoiQWlQbGF0Zm9ybS8uT3dsQm90LnlhbWwiLCJoIjoiMTM2MzM4NWY0N2M0ZTBhM2Y1NGMxYzkzYWYzZDA5ZThmYTUxOGQwYSJ9

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* feat: Add asyncQueryReasoningEngine to aiplatform v1 API

PiperOrigin-RevId: 900907134

Source-Link: googleapis/googleapis@1a00cec

Source-Link: googleapis/googleapis-gen@f356560
Copy-Tag: eyJwIjoiQWlQbGF0Zm9ybS8uT3dsQm90LnlhbWwiLCJoIjoiZjM1NjU2MDY5Y2M4MGRiZTMyZmUzNmE2NjAzZTUxNTYyY2ViYTJjNCJ9

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

---------

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: gcf-owl-bot[bot]

AiPlatform/metadata/V1/ModelService.php

@@ -0,0 +1,89 @@
+<?php
+/*
+ * Copyright 2026 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 aiplatform_v1_generated_ReasoningEngineExecutionService_AsyncQueryReasoningEngine_sync]
+use Google\ApiCore\ApiException;
+use Google\ApiCore\OperationResponse;
+use Google\Cloud\AIPlatform\V1\AsyncQueryReasoningEngineRequest;
+use Google\Cloud\AIPlatform\V1\AsyncQueryReasoningEngineResponse;
+use Google\Cloud\AIPlatform\V1\Client\ReasoningEngineExecutionServiceClient;
+use Google\Rpc\Status;
+
+/**
+ * Async query using a reasoning engine.
+ *
+ * @param string $formattedName The name of the ReasoningEngine resource to use.
+ *                              Format:
+ *                              `projects/{project}/locations/{location}/reasoningEngines/{reasoning_engine}`
+ *                              Please see {@see ReasoningEngineExecutionServiceClient::reasoningEngineName()} for help formatting this field.
+ */
+function async_query_reasoning_engine_sample(string $formattedName): void
+{
+    // Create a client.
+    $reasoningEngineExecutionServiceClient = new ReasoningEngineExecutionServiceClient();
+
+    // Prepare the request message.
+    $request = (new AsyncQueryReasoningEngineRequest())
+        ->setName($formattedName);
+
+    // Call the API and handle any network failures.
+    try {
+        /** @var OperationResponse $response */
+        $response = $reasoningEngineExecutionServiceClient->asyncQueryReasoningEngine($request);
+        $response->pollUntilComplete();
+
+        if ($response->operationSucceeded()) {
+            /** @var AsyncQueryReasoningEngineResponse $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
+{
+    $formattedName = ReasoningEngineExecutionServiceClient::reasoningEngineName(
+        '[PROJECT]',
+        '[LOCATION]',
+        '[REASONING_ENGINE]'
+    );
+
+    async_query_reasoning_engine_sample($formattedName);
+}
+// [END aiplatform_v1_generated_ReasoningEngineExecutionService_AsyncQueryReasoningEngine_sync]