import { LastDayStrategy } from './types';
export declare class CustomLeapYearStrategy implements LastDayStrategy {
    leapYear: number;
    leapYearEndDate: string;
    leapYearFrequency: number;
    constructor(leapYear: number, leapYearEndDate: string, leapYearFrequency: number);
    getLastDayForGregorianLastDay(lastDayOfGregorianYear: Date, isoLastDayOfWeek: number, retailCalendarYear: number): Date;
}