/// <reference types="node" />
import { Transform, TransformCallback } from "stream";
/**
 * Scrapers must implement this one method that returns a transform stream.
 * create() will be called on each url handled
 * and the html will stream to the Transform stream returned from create().
 * See MetadataScraper for a default implementation
 */
export default class IScraperFactory {
    create(options?: any): Transform;
}
export declare class MetadataScraper extends IScraperFactory {
    create(options?: any): MetadataScrapeStream;
}
declare class MetadataScrapeStream extends Transform {
    private open?;
    private lastChunk?;
    private chunks?;
    constructor(options?: any);
    _transform(c: any, encoding: string, callback: TransformCallback): void;
    _flush(callback: TransformCallback): void;
}
export {};