import { type IParser, type IMapping } from './parser';
export interface INumber<Output extends unknown = unknown> extends IParser<Output> {
    type: 'Number';
}
export declare function Number<Mapping extends IMapping<string>>(mapping: Mapping): INumber<ReturnType<Mapping>>;
export declare function Number(): INumber<string>;
export declare function IsNumber(value: unknown): value is INumber;
export declare function ParseNumber(input: string): [] | [string, string];