public static function createFromResponse(\SimpleXMLElement $response)
 {
     $affiliation = new Affiliation();
     $affiliation->setSupplierName((string) $response->supplierName);
     $price = array();
     $price['currency'] = (string) $response->price->currency;
     $price['amount'] = (double) $response->price->amount;
     $affiliation->setPrice($price);
     $affiliation->setBuyLink((string) $response->buyLink);
     $affiliation->setSupplierIcon((string) $response->supplierIcon);
     $affiliation->setIsSearch((int) $response->isSearch);
     return $affiliation;
 }