private function getAccSys($assetTypeCode)
    {
        $req = new \Praxigento\Accounting\Api\Service\Account\Get\Request();
        $req->setIsSystem(TRUE);
        $req->setAssetTypeCode($assetTypeCode);
        $resp = $this->servAccount->exec($req);
        $result = $resp->getId();
        return $result;
    }