protected function clean($obj)
    {
        $methods = array();

        foreach ($this->forceArray($obj->GetMyPaymentMethodsResult->PaymentMethods->PaymentMethod) as $value) {
            array_push($methods, array(
                'PaymentMethodCode' => $value->PaymentMethodCode,
                'Description' => $value->Description,
                'Issuers' => $this->convertIssuers($this->forceArray($value->Issuers->Issuer))
                    )
            );
        };
        return $methods;
    }