protected function buildHandlers(array $config):array
    {
        $handlers = [];
        foreach ($config as $handler) {
            $level = constant('\Mostofreddy\Loggy\Logger::'. strtoupper($handler['level']));
            $handlerObj = '\Mostofreddy\Loggy\Handler\\'.ucfirst($handler['handler']);
            $handlers[] = (new $handlerObj($level))->config($handler);
        }
        return $handlers;
    }