import { CrawlOptions, CrawlResult } from '../types.js';
export declare class CrawlQueue {
    private visited;
    private queue;
    private limit;
    private cache;
    private options;
    private results;
    constructor(options?: CrawlOptions);
    init(): Promise<void>;
    crawl(startUrl: string): Promise<CrawlResult[]>;
    private processQueue;
    private processUrl;
}