import type { YobtaMaybe } from '../_types/YobtaMaybe.js';
import type { YobtaSyncRule } from '../rule/rule.js';
export declare const numberMessage = "It should be a number";
export declare const number: <I>(message?: string) => YobtaSyncRule<I, YobtaMaybe<I, number>>;
//# sourceMappingURL=number.d.ts.map