/**
 * A utility class for working with dates.
 */
export declare class DateUtil {
    /**
     * Formats the given date according to the specified format.
     * @param date The date to format.
     * @param format The format string, using the following placeholders:
     *   - YYYY: four-digit year
     *   - MM: two-digit month (zero-padded)
     *   - DD: two-digit day of month (zero-padded)
     *   - HH: two-digit hour (zero-padded, 24-hour format)
     *   - mm: two-digit minute (zero-padded)
     *   - ss: two-digit second (zero-padded)
     * @returns The formatted date string.
     */
    static formatDate(date: Date, format: string): string;
}