import { IsoDate, IsoDateTime, IsoDuration } from './iso-types';
declare function total(duration: IsoDuration, { unit, relativeTo }: {
    unit: 'years' | 'months' | 'weeks' | 'days' | 'hours' | 'minutes' | 'seconds' | 'milliseconds';
    relativeTo?: IsoDateTime | IsoDate;
}): number;
export default total;