import { IMeasure } from '../types';
export type massSystems = 'metric' | 'imperial';
export type massUnits = 'mg' | 'g' | 'kg' | 't' | 'kt' | 'mt' | 'gr' | 'dr' | 'oz' | 'lb' | 'stone' | 'qr' | 'slug' | 'tn' | 'ton-uk';
export declare const mass: IMeasure<massSystems, massUnits>;