import { Repository } from 'typeorm';
import { AppVersionModel, SystemType } from 'src/model/app_version.model';
import { Api } from 'src/app/common/api';
export declare class AppVersionService {
    private appVersionModel;
    constructor(appVersionModel: Repository<AppVersionModel>);
    checkUpdate(currentVersion: string, systemType: SystemType): Promise<Api>;
    private compareVersion;
}