public function getGateways()
    {
        $gateways = array();
        foreach ($this->supported_gateways as $gateway) {
            $class = 'AktiveMerchant\\Billing\\Gateways\\' . $gateway;
            $gateways[Inflect::underscore($gateway)] = $class::$display_name;
        }

        return $gateways;
    }