map.d.ts

import { Functor, List, Morphism } from './$types';

export function $list<T, U>(fn: Morphism<T, U>, list: List<T>): U[];
export function $functor<T, U>(
  fn: Morphism<T, U>,
  functor: Functor<T>,
): Functor<U>;
export function $object<T, U, K extends string>(
  fn: Morphism<T, U>,
  object: Record<K, T>,
): Record<K, U>;
export function $mixed<T, U, K extends string>(
  fn: Morphism<T, U>,
  target: List<T> | Functor<T> | Record<K, T>,
): U[] | Functor<U> | Record<K, U>;