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