import { Property } from "./abstractions";
export declare type PromiseMapper<I, O> = [
    () => O,
    (resolved: I) => O,
    (rejected: Error) => O
];
export declare type PromiseState<O> = PromisePending | PromiseResolved<O> | PromiseRejected;
export declare type PromisePending = {
    state: "pending";
};
export declare type PromiseResolved<O> = {
    state: "resolved";
    value: O;
};
export declare type PromiseRejected = {
    state: "rejected";
    error: Error;
};
export declare function fromPromise<I, O>(promise: Promise<I>, ...mapper: PromiseMapper<I, O>): Property<O>;
export declare function fromPromise<I>(promise: Promise<I>): Property<PromiseState<I>>;