import { JsonFestivalLeyning } from './internalTypes.js';
/**
 * Tests whether `holiday-readings.json` has a reading for the given key.
 * @param holiday an (untranslated) reading key, e.g. `'Purim'`
 * @returns `true` if a reading exists for this key
 */
export declare function hasFestival(holiday: string): boolean;
/**
 * Returns the raw reading metadata for a holiday key from
 * `holiday-readings.json`, resolving any `alias` entry and normalizing book
 * numbers to English names.
 *
 * This is the underlying data; most callers want
 * {@link getLeyningForHolidayKey}, which builds a complete {@link Leyning}.
 * @param holiday an (untranslated) reading key, e.g. `'Purim'`
 * @returns the raw festival metadata, or `undefined` if the key is unknown
 */
export declare function lookupFestival(holiday: string): JsonFestivalLeyning | undefined;