import { Result } from "./Result.js";
export declare class ResultAsync<TValue, TError = never> {
    private readonly promise;
    constructor(promise: Promise<Result<TValue, TError>>);
    static from<T, E>(fn: () => Promise<Result<T, E>>): ResultAsync<T, E>;
    static ok<T>(value: T): ResultAsync<T, never>;
    static fail<E>(error: E): ResultAsync<never, E>;
    unwrap(): Promise<Result<TValue, TError>>;
    mapAsync<U>(fn: (value: TValue) => U | Promise<U>): ResultAsync<U, TError>;
    mapErrorAsync<F>(fn: (error: TError) => F | Promise<F>): ResultAsync<TValue, F>;
    flatMapAsync<U>(fn: (value: TValue) => ResultAsync<U, TError>): ResultAsync<U, TError>;
    match<U>(handlers: {
        ok: (value: TValue) => U;
        fail: (error: TError) => U;
    }): Promise<U>;
}