at the end of the day, it was inevitable

src/Common/Annotation/AppAnnotationInterface.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace Common\Annotation;
+
+/**
+ * Interface AppAnnotationInterface
+ * @package Common\Annotation
+ */
+interface AppAnnotationInterface
+{
+
+    /**
+     * Return name of default property.
+     *
+     * @return string
+     */
+    public function getDefault();
+}