import { type Ref } from 'vue';
export interface PromiseRef<T, TValue extends T | undefined = T> extends Ref<TValue> {
    promise: Promise<T>;
    update(promise: Promise<T>): Promise<T>;
}
export declare function promiseRef<T>(): PromiseRef<T | undefined>;
export declare function promiseRef<T>(promise: Promise<T>): PromiseRef<T, T | undefined>;
export declare function promiseRef<T>(value: T): PromiseRef<T>;