export declare const convertADToBS: (englishDate: string) => string;
export declare const convertBSToAD: (nepaliDate: string) => string;
export declare const calculateAge: (dateOfBirth: string) => {
    years?: undefined;
    months?: undefined;
    days?: undefined;
} | {
    years: number;
    months: number;
    days: number;
};