import type { Result } from './result.js';
type UnwrapOrElse = {
    <Res extends Result.Any, Fn extends (err: Result.ErrType<Res>) => Result.OkType<Res>>(mapFn: Fn): (result: Res) => Result.OkType<Res>;
    <Res extends Result.Any, Fn extends (err: Result.ErrType<Res>) => Result.OkType<Res>>(mapFn: Fn, result: Res): Result.OkType<Res>;
};
/**
 * Extract value from an `Ok` or from a fallback `() => Ok` if an `Err`
 *
 * @tags result, unwrap, transform, transform-result, errors, left-biased
 * @see https://doc.rust-lang.org/core/result/enum.Result.html#method.unwrap_or_else
 */
export declare const unwrapOrElse: UnwrapOrElse;
export {};