the latest code

vendor/symfony/http-kernel/Attribute/AsController.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\HttpKernel\Attribute;
+
+/**
+ * Autoconfigures controllers as services by applying
+ * the `controller.service_arguments` tag to them.
+ *
+ * This enables injecting services as method arguments in addition
+ * to other conventional dependency injection strategies.
+ */
+#[\Attribute(\Attribute::TARGET_CLASS | \Attribute::TARGET_FUNCTION)]
+class AsController
+{
+}