/**
 * elapsed.ts
 *
 * @package  vrkd/src/time
 * @author  Fernando Salazar
 */
export interface TimeElapsed {
    amount: number;
    label: string;
}
/**
 * Time elapsed between two values.
 *
 * @param  $start time in milliseconds
 * @param  $end time in milliseconds
 */
export declare function Elapsed($start: number, $end?: number): TimeElapsed | null;