import { DEFAULT_HEADER_FOOTER_URL, type THeaderFooterApi } from '../../shared-types/header-footer';
export { DEFAULT_HEADER_FOOTER_URL };
/** Clear the shared payload cache. Intended for tests. */
export declare function resetHeaderFooterDataCache(): void;
/**
 * Fetch and parse the Oslo kommune header/footer JSON payload.
 *
 * Throws on HTTP errors and on invalid JSON. The caller is responsible
 * for surfacing or hiding errors — the Lit element, for example, hides
 * the menu and dispatches a `data-error` event.
 *
 * `signal` lets callers abort their own wait when the component
 * disconnects; the underlying request is shared and keeps running for
 * any other component awaiting the same URL.
 */
export declare function fetchHeaderFooterData<IconType = string>(url?: string, signal?: AbortSignal): Promise<THeaderFooterApi<IconType>>;