import type { Keys } from "./keys";
export declare type MapCallback<T> = (key: Keys<T>, value: T[typeof key], object: T) => [key: PropertyKey, value: any];
/**
 * Transform an object without mutating the original.
 *
 * @param object The original object.
 * @param callback The map method calls the callback function one time for each element in the array.
 */
export declare function map<T, R>(object: Readonly<T>, callback: MapCallback<T>): R;