export declare const WS_ERROR_CODE: {
    /**
     * { code: -1125, msg: 'This listenKey does not exist.' },
     */
    readonly LISTEN_KEY_NOT_FOUND: -1125;
    /**
     * {"code":-2015,"msg":"Invalid API-key, IP, or permissions for action."}
     */
    readonly INVALID_API_KEY_OR_IP_OR_PERMISSIONS: -2015;
};
export declare function isFatalWSError(e: any): boolean;