The variable type is defined

~dev_rating/application/classes/Controller/Handler/FileCreator.php

@@ -2,6 +2,8 @@
 
 class Controller_Handler_FileCreator extends Controller_Handler
 {
+    /** @var  Model_Teacher_Rating */
+    protected $model;
 
     public function before() {
         $this->model = new Model_Teacher_Rating;