interface DateLike {
    /**
     * Returns the year of the date.
     */
    getFullYear(): number;
    /**
     * Returns the month of the date (0-11).
     */
    getMonth(): number;
    /**
     * Returns the day of the month (1-31).
     */
    getDate(): number;
    /**
     * Returns the hours of the date (0-23).
     */
    getHours(): number;
    /**
     * Returns the minutes of the date (0-59).
     */
    getMinutes(): number;
    /**
     * Returns the seconds of the date (0-59).
     */
    getSeconds(): number;
    /**
     * Returns the milliseconds of the date (0-999).
     */
    getMilliseconds(): number;
    /**
     * Returns the day of the week (0-6, where 0 is Sunday).
     */
    getDay(): number;
    /**
     * Returns the time value in milliseconds since the Unix epoch (January 1, 1970).
     */
    getTime(): number;
    /**
     * Returns the timezone offset in minutes from UTC.
     */
    getTimezoneOffset(): number;
}

declare const formatter: {
    W(d: DateLike): string;
    WW(d: DateLike): string;
    GGGG(d: DateLike): string;
    GG(d: DateLike): string;
    G(d: DateLike): string;
};

export { formatter };