public function make($wsdl, array $classMap = [])
    {
        return new SoapClient($wsdl, [
            'trace'      => true,
            'exceptions' => true,
            'encoding'   => 'utf-8',
            'features'   => SOAP_SINGLE_ELEMENT_ARRAYS,
            'classmap'   => $classMap,
            'cache_wsdl' => WSDL_CACHE_MEMORY,
        ]);
    }