Install phan/phpstan local

vendor/sabre/event/lib/Version.php

@@ -0,0 +1,20 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Sabre\Event;
+
+/**
+ * This class contains the version number for this package.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Version
+{
+    /**
+     * Full version number.
+     */
+    const VERSION = '5.1.4';
+}