Zend Studio for Eclipse autocompletion hinting

I had problems getting auto-complete to work for my "product" member variable (of type Mage_Catalog_Model_Product) working in Zend Studio for Eclipse. I found the solution in this article by HanaDaddy. The below works for me... typing in $this->product-> now gives me auto complete.

/**
*
* @var Mage_Catalog_Model_Product
*/
var $product;