<?php
 
 abstract class Frame
 {
 
 }
 
 final class TextFrameDecorator extends Frame
 {
     
 }
 
 abstract class FrameReflower
 {
-    /**
-     * Frame for this reflower
-     * @var Frame
-     */
-    protected $_frame;
+    /**
+     * Frame for this reflower
+     */
+    protected \Frame $_frame;
     
     public function __construct(Frame $frame)
     {
 
     }
 }
 
 final class SimpleTextFrameReflower extends FrameReflower
 {
     /**
      * @var TextFrameDecorator
      */
     protected $_frame;
     
     public function __construct(TextFrameDecorator $frame)
     {
         parent::__construct($frame);
     }
 }