public function getConstraintsResponse(array $result) {
        $body = json_decode($result['response'], true);
        $constraint = $body['constraints'][0];
        $genericerr = $this->getErrorResponse($constraint['constraintId'], [$constraint['description']]);
        return new AmazonGenericError(
            $genericerr->errorcode,
            $genericerr->errorname,
            $genericerr->httpcode,
            $genericerr->debugmsg,
            $genericerr->message,
            $genericerr->adminmsg,
            $genericerr->logger,
            $result
        );
    }