declare strict type

Author: Vasiliev.A

app/code/Magento/Webapi/Model/ConfigInterface.php

@@ -3,6 +3,9 @@
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
+
+declare(strict_types=1);
+
 namespace Magento\Webapi\Model;
 /**
  * This class gives access to consolidated web API configuration from <Module_Name>/etc/webapi.xml files.

app/code/Magento/WebapiAsync/Controller/Rest/Asynchronous/InputParamsResolver.php

@@ -4,6 +4,8 @@
  * See COPYING.txt for license details.
  */
 
+declare(strict_types=1);
+
 namespace Magento\WebapiAsync\Controller\Rest\Asynchronous;
 
 use Magento\Framework\Webapi\ServiceInputProcessor;

app/code/Magento/WebapiAsync/Controller/Rest/AsynchronousBulkRequestProcessor.php

@@ -4,6 +4,8 @@
  * See COPYING.txt for license details.
  */
 
+declare(strict_types=1);
+
 namespace Magento\WebapiAsync\Controller\Rest;
 
 use Magento\Framework\Exception\BulkException;

app/code/Magento/WebapiAsync/Controller/Rest/AsynchronousBulkSchemaRequestProcessor.php

@@ -4,6 +4,8 @@
  * See COPYING.txt for license details.
  */
 
+declare(strict_types=1);
+
 namespace Magento\WebapiAsync\Controller\Rest;
 
 use Magento\Webapi\Model\Rest\Swagger\Generator;

app/code/Magento/WebapiAsync/Model/BulkServiceConfig.php

@@ -4,6 +4,8 @@
  * See COPYING.txt for license details.
  */
 
+declare(strict_types=1);
+
 namespace Magento\WebapiAsync\Model;
 
 use Magento\Framework\Serialize\SerializerInterface;