export type Rules = Array<{
    validator: (value: any) => boolean | Promise<boolean>;
    message: string | (() => string);
}>;
export default function (rules: Rules | undefined): {
    validator: (targetValue: any) => Promise<boolean>;
    loading: import("vue").Ref<boolean, boolean>;
    error: import("vue").Ref<boolean, boolean>;
    message: import("vue").Ref<string, string>;
};