import { type PortalRfcAmpc } from '@nodecfdi/sat-scrapers-auth';
export default class Scraper {
    private readonly _portal;
    constructor(_portal: PortalRfcAmpc);
    downloadAsBase64(once?: boolean): Promise<string>;
    downloadAsFile(targetPath: string, once?: boolean): Promise<void>;
    private generateConstancia;
    private readStreamToBase64;
}