import { Location } from './location';
/**
 * Returns `true` if the given moment (date + time) falls within a period
 * when *melacha* (work) is prohibited — i.e. Shabbat or a Yom Tov.
 *
 * The Shabbat/Yom Tov window is taken to begin at sunset (shkiah) on the
 * preceding day (Erev Shabbat / Erev Yom Tov / Yom Tov sheni) and to end
 * at *tzais* (nightfall) on the day itself. *Tzais* is calculated using a
 * solar depression of 8.5° for simplicity; consult a halachic authority
 * for more stringent opinions.
 *
 * `useElevation` controls whether the location's elevation is taken into
 * account when computing sunset (it has no effect on the degree-based
 * tzais calculation). The Israel/Diaspora schedule comes from
 * `location.getIsrael()`.
 *
 * Throws if sunset cannot be calculated for the given location
 * (e.g. polar regions).
 * @example
 * import {isAssurBemlacha, Location} from '@hebcal/core';
 * const loc = Location.lookup('Jerusalem')!;
 * // Friday after sunset:
 * isAssurBemlacha(new Date('2024-04-26T18:00:00Z'), loc, false); // true
 * @param currentTime the moment to test (with hour/minute)
 * @param location geographic location (also supplies Israel/Diaspora flag and tzid)
 * @param useElevation include elevation when computing sunset
 * @return `true` if *melacha* is prohibited, `false` if it is not
 */
export declare function isAssurBemlacha(currentTime: Date, location: Location, useElevation: boolean): boolean;