import { NOTHING } from "../constants";
import type { Nothing } from "../types";
import type { Predicate } from "../types";
export declare const fork: <T, U, V>(value: T, [leftPredicate, rightPredicate]: [Predicate<T>, Predicate<T>], [left, right]: [(value: T) => U, (value: T) => V]) => U | V | typeof NOTHING;