Initial commit，修正

vendor/symfony/mailer/Exception/TransportExceptionInterface.php

@@ -0,0 +1,22 @@
+<?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\Mailer\Exception;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface TransportExceptionInterface extends ExceptionInterface
+{
+    public function getDebug(): string;
+
+    public function appendDebug(string $debug): void;
+}