import { UserService } from '../../service/common/user.service';
export declare class DownloadHelperService {
    private user;
    private addressFileNameDictionary;
    constructor(user: UserService);
    registerDownloadLink(urlPart: string, fileName: string): void;
    private openDecorator(url, name, features);
    private findFileNameByUrl(context, url);
    private downloadViaBlob(context, url, fileName);
    private getExtensionByContentType(contentType);
}