cart integration

local/modules/Colissimo/Colissimo.php

@@ -25,6 +25,7 @@ namespace Colissimo;
 
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 use Symfony\Component\HttpFoundation\Request;
+use Thelia\Model\Country;
 use Thelia\Module\BaseModule;
 use Thelia\Module\DeliveryModuleInterface;
 
@@ -57,10 +58,10 @@ class Colissimo extends BaseModule implements DeliveryModuleInterface
      *
      * calculate and return delivery price
      *
-     * @param null $country
+     * @param Country $country
      * @return mixed
      */
-    public function calculate($country = null)
+    public function calculate(Country $country)
     {
         // TODO: Implement calculate() method.
         return 2;