diff --git a/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/symfony/translation/Loader/LoaderInterface.php b/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/symfony/translation/Loader/LoaderInterface.php
new file mode 100644
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--- /dev/null
+++ b/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/symfony/translation/Loader/LoaderInterface.php
@@ -0,0 +1,38 @@
+<?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\Translation\Loader;
+
+use Symfony\Component\Translation\Exception\InvalidResourceException;
+use Symfony\Component\Translation\Exception\NotFoundResourceException;
+use Symfony\Component\Translation\MessageCatalogue;
+
+/**
+ * LoaderInterface is the interface implemented by all translation loaders.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface LoaderInterface
+{
+    /**
+     * Loads a locale.
+     *
+     * @param mixed  $resource A resource
+     * @param string $locale   A locale
+     * @param string $domain   The domain
+     *
+     * @return MessageCatalogue A MessageCatalogue instance
+     *
+     * @throws NotFoundResourceException when the resource cannot be found
+     * @throws InvalidResourceException  when the resource cannot be loaded
+     */
+    public function load($resource, string $locale, string $domain = 'messages');
+}