import { HttpClient, HttpResponse } from '@angular/common/http';
import { Observable } from 'rxjs';
import { ApiRequestService } from './api-request.service';
export declare class DownloadService {
    private httpClient;
    private apiRequestService;
    constructor(httpClient: HttpClient, apiRequestService: ApiRequestService);
    downloadFile(url: string): Observable<any>;
    downloadFileHeaderResponse(url: string): Observable<HttpResponse<Blob>>;
    downloadFilePub(url: string): Observable<any>;
}