import { ProxyOptions } from '../types/proxy.types.js';
export declare enum CaptchaType {
    RECAPTCHA_V2 = "RECAPTCHA_V2",
    RECAPTCHA_V3 = "RECAPTCHA_V3",
    HCAPTCHA = "HCAPTCHA"
}
interface DetectorOptions {
    timeout?: number;
    userAgent?: string;
    followRedirects?: boolean;
}
export declare class CaptchaDetector {
    private readonly options;
    private readonly defaultOptions;
    constructor(options?: DetectorOptions);
    detect(url: string, proxy?: ProxyOptions): Promise<CaptchaType | null>;
    analyzeHtml(html: string): CaptchaType | null;
    private fetchHtml;
    private detectHCaptcha;
    private detectRecaptcha;
}
export {};