import { Unit } from "./Unit";
export declare class UnitMass extends Unit {
    static kilograms: UnitMass;
    static grams: UnitMass;
    static milligrams: UnitMass;
    static micrograms: UnitMass;
    static nanograms: UnitMass;
    static picograms: UnitMass;
    static ounces: UnitMass;
    static pounds: UnitMass;
    static stones: UnitMass;
    static metricTons: UnitMass;
    static shortTons: UnitMass;
    static carats: UnitMass;
    static ouncesTroy: UnitMass;
    static slugs: UnitMass;
    constructor(name: string, symbol: string, description: string, baseUnitConversionFactor: number);
}