import type IBrowserFrame from '../types/IBrowserFrame.js';
import { URL } from 'url';
/**
 * Browser frame URL utility.
 */
export default class BrowserFrameURL {
    /**
     * Returns relative URL.
     *
     * @param frame Frame.
     * @param url URL.
     * @returns Relative URL.
     */
    static getRelativeURL(frame: IBrowserFrame, url?: string | URL | null): URL;
}
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