import { Quantity } from './Quantity';
declare abstract class ArithmeticQuantity<TSign extends string, TImpl extends ArithmeticQuantity<TSign, any>> extends Quantity<number, TSign, TImpl> {
    apply(fn: (value: number) => number): TImpl;
    add(other: TImpl): TImpl;
    sub(other: TImpl): TImpl;
    mul(scalar: number): TImpl;
    div(scalar: number): TImpl;
    neg(): TImpl;
}
export { ArithmeticQuantity };