/**
* Constructor
*
* @param string $api_url
* @param string $item_name
* @param string $license_key
* @param string $slug
* @param string $theme_version
* @param string $author (optional)
*/
public function __construct(Yoast_Product $product, $license_key)
{
parent::__construct($product, $license_key);
$this->response_key = $this->product->get_slug() . '-update-response';
// setup hooks
$this->setup_hooks();
}