Cleaning up.

src/Notification/NotificationInterface.php

@@ -6,6 +6,10 @@ namespace App\Notification;
 
 interface NotificationInterface
 {
-    static function factory(array $config): self;
+    /**
+     * @param string[] $config Configuration
+     */
+    public static function factory(array $config): self;
+
     public function send(string $title, string $message): void;
 }