import type { RecoveryFn } from '../../internal/function.js';
import type { Option } from './option.js';
/**
 *  Unwraps a result _input_, returns the content of an `Some(T)`.
 *  If the value is an `None` then it calls `def` with its value.
 */
export declare function unwrapOrElseForOption<T>(input: Option<T>, recoverer: RecoveryFn<T>): T;