import { IFetcher } from './types.js';
export declare class BrowserFetcher implements IFetcher {
    private browser;
    private initBrowser;
    close(): Promise<void>;
    fetchHtml(url: string, options?: any): Promise<string>;
    fetchJson(url: string, options?: any): Promise<any>;
    fetchText(url: string, options?: any): Promise<string>;
}