* * @param array $config_biz * * @return mixed */ public function pay(array $config_biz); /** * refund a order. * * @author yansongda * * @param array|string $config_biz * * @return array|bool */ public function refund($config_biz); /** * close a order. * * @author yansongda * * @param array|string $config_biz * * @return array|bool */ public function close($config_biz); /** * find a order. * * @author yansongda * * @param string $out_trade_no * * @return array|bool */ public function find($out_trade_no); /** * verify notify. * * @author yansongda * * @param mixed $data * @param string $sign * @param bool $sync * * @return array|bool */ public function verify($data, $sign = null, $sync = false); }