/**
 * @param {ThematicBreak} _
 * @param {Parents | undefined} _1
 * @param {State} state
 * @returns {string}
 */
export function thematicBreak(_: ThematicBreak, _1: Parents | undefined, state: State): string;
export type Parents = import('mdast').Parents;
export type ThematicBreak = import('mdast').ThematicBreak;
export type State = import('../types.js').State;