import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
export declare class NkRibbonFileService {
    constructor();
    download(data: any, url?: string): Observable<any>;
    private downloadFile;
    private trim;
    private isString;
    private parseHeaders;
    private successDownload;
    static ɵfac: i0.ɵɵFactoryDeclaration<NkRibbonFileService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<NkRibbonFileService>;
}