import type { RecoveryFn } from '../internal/function.js';
import { type Result } from '../plain_result/result.js';
import { type Undefinable } from './undefinable.js';
/**
 * Transforms the `Undefinable<T>` into a `Result<T, E>` by mapping `T` to `Ok(T)`.
 * If `input` is `undefined`, then returns `Err(E)` with the result of `recoverer()`
 */
export declare function okOrElseForUndefinable<T, E>(input: Undefinable<T>, recoverer: RecoveryFn<E>): Result<T, E>;