/**
 * Derived from http://www.nabkal.de/ostrech1.html
 * Originally written by Nikolaus A. Bär.
 * Modified by Sheean Spoel, Digital Humanities Lab, Utrecht University.
 */
import { Calendar } from './calendar';
/**
 * Calculates the date for Easter and the associated dates.
 * @param year The unabbreviated (Roman) year number.
 * @param calendar The calendar style to use.
 */
export declare function calcEaster(year: number | string, calendar?: Calendar): {
    /**
     * Easter Sunday.
     */
    sunday: import("./gregorian-date").GregorianDate | import("./julian-date").JulianDate;
    /**
     * Ninth Sunday before Easter.
     */
    septuagesima: import("./gregorian-date").GregorianDate | import("./julian-date").JulianDate;
    ashWednesday: import("./gregorian-date").GregorianDate | import("./julian-date").JulianDate;
    ascensionDay: import("./gregorian-date").GregorianDate | import("./julian-date").JulianDate;
    /**
     * Also called Whitsunday.
     */
    pentecost: import("./gregorian-date").GregorianDate | import("./julian-date").JulianDate;
    /**
     * First Sunday after Pentecost.
     */
    trinitySunday: import("./gregorian-date").GregorianDate | import("./julian-date").JulianDate;
    /**
     * Thursday after Trinity Sunday.
     */
    corpusChristi: import("./gregorian-date").GregorianDate | import("./julian-date").JulianDate;
    adventSunday: import("./gregorian-date").GregorianDate | import("./julian-date").JulianDate;
    epact: "XXIII" | "XXII" | "XXI" | "XX" | "XIX" | "XVIII" | "XVII" | "XVI" | "XV" | "XIV" | "XIII" | "XII" | "XI" | "X" | "IX" | "VIII" | "VII" | "VI" | "V" | "IV" | "III" | "II" | "I" | " * " | "XXIX" | "XXVIII" | "XXVII" | "XXVI" | "XXV" | "XXIV" | "25";
    goldenNumber: number;
    /**
     * Weekday of 24th of March.
     */
    concurrent: number;
    /**
     * Dominical letter associated with this year.
     */
    dominicalLetter: "F" | "E" | "D" | "C" | "B" | "A" | "G";
};