export declare class MonthAndYear { static fromDate(date: Date | null): MonthAndYear; private date; constructor(month?: number, year?: number); clone(): MonthAndYear; getFullDate(): Date; getMonth(): number; getYear(): number; getPreviousMonth(): MonthAndYear; getNextMonth(): MonthAndYear; isBefore(monthAndYear: MonthAndYear): boolean; isAfter(monthAndYear: MonthAndYear): boolean; isSame(monthAndYear: MonthAndYear): boolean; isSameMonth(monthAndYear: MonthAndYear): boolean; }