import { Diff } from '../Diff';
declare const numberDiffSymbol: unique symbol;
declare const numberDiff: (parameters: Omit<NumberDiff, 'kind'>) => NumberDiff;
interface NumberDiff extends Diff {
    kind: typeof numberDiffSymbol;
    actual?: number;
    expected?: number;
    difference: number;
}
declare const isNumberDiff: (diff: any) => diff is NumberDiff;
export type { NumberDiff };
export { isNumberDiff, numberDiff };
