/**
 * Heading links have the form `<origin>/<path>#heading=<slug>-<uuid8>`.
 * They're created by the copy-heading-link button in the TOC and the
 * block handle menu. Consumers of a dDoc paste these URLs expecting
 * same-page scroll behavior; but the same URL shape is also used for
 * cross-document heading links, which we need to detect and warn about.
 */
export interface ParsedHeadingLink {
    /** The raw `heading` hash param value (e.g. `my-heading-a1b2c3d4`). */
    headingParam: string;
    /** The short id suffix used to locate the heading in the DOM. */
    id: string;
    /** The heading element in the current document, if present. */
    headingEl: HTMLHeadingElement | undefined;
}
/**
 * Parses a URL and, if it's a heading link pointing at the current origin,
 * returns the heading param, id, and the matching DOM element (if any).
 *
 * Returns `null` when the URL is not parseable, is cross-origin, has no
 * hash, or does not carry a `heading=` param.
 */
export declare const parseHeadingLink: (rawUrl: string) => ParsedHeadingLink | null;