/**
 * 错误码长度为6位数字。
 * 1XXXXX device 异常
 * 4XXXXX http 异常
 * 5XXXXX signal 异常
 * 6XXXXX media 异常
 * 7XXXXX 缺省检查
*/
export declare type errMsg = {
    code: number;
    msg: string;
};
export declare function lackErrCode(msg: string): errMsg;
export declare let errCode: Map<string, errMsg>;