import type { SitemapEntry } from './buildSitemapEntries.js';
type BuildSitemapXmlOptions = {
    /**
     * URL of a CSS stylesheet to make the sitemap readable in the browser, e.g.
     * '/sitemap.css'. Uses `type="text/css"` — the W3C "Associating Style Sheets
     * with XML" mechanism, which is NOT deprecated (unlike XSLT / type="text/xsl",
     * which Chrome/WebKit are removing). CSS on XML shows no warning, styles the
     * raw tags directly (e.g. `url { display: block }` turns the wall of text into
     * cards), and crawlers ignore the directive entirely.
     */
    cssUrl?: string;
};
/**
 * Serializes sitemap entries to a clean, indented XML STRING — valid for crawlers
 * and (with `cssUrl`) styled in the browser via plain CSS.
 *
 * Two viewing modes:
 *  - No cssUrl → the browser's native formatted XML tree (indented, collapsible).
 *  - With cssUrl → a `<?xml-stylesheet type="text/css">` directive; the project's
 *    CSS styles the XML tags (cards, labels via ::before). NOT XSLT — that's being
 *    removed from browsers and shows a deprecation warning. CSS is safe and
 *    W3C-standard.
 *
 *   // app/sitemap.xml/route.ts
 *   import { buildSitemapXml } from '@intecion/ipal-kit'
 *   import { sitemap } from '@/lib/content'
 *   export const dynamic = 'force-dynamic'
 *   export async function GET() {
 *     const entries = await sitemap()
 *     const xml = buildSitemapXml(entries, { cssUrl: '/sitemap.css' })
 *     return new Response(xml, {
 *       headers: { 'Content-Type': 'application/xml; charset=utf-8' },
 *     })
 *   }
 *
 * Put sitemap.css in the project's /public and style the tags (see docs/seo.md
 * for a starter). Note: <loc> is an XML tag, not <a href> — CSS can't make it a
 * clickable link (some browsers auto-detect URLs); the win is readability, not
 * clickability.
 *
 * NOTE: if you use this custom route, DON'T also keep app/sitemap.ts — pick one.
 * Two sitemaps confuse crawlers.
 */
export declare function buildSitemapXml(entries: SitemapEntry[], opts?: BuildSitemapXmlOptions): string;
export {};