interface DateRangeOptions {
    minRef?: string;
    maxRef?: string;
    maxDays?: number;
}
declare const dateRangeExtension: {
    type: string;
    base: undefined;
    messages: {
        'date.range': string;
    };
    rules: {
        dateRange: {
            method(options: DateRangeOptions): any;
            validate(value: any, helpers: any, args: any): any;
        };
    };
};

export { type DateRangeOptions, dateRangeExtension };