/**
 * Applies the given transformer to all values in the given record and returns a new record containing the resulting keys
 * associated to the last value that produced them.
 *
 * Example:
 *
 * ```ts
 * import { mapValues } from "https://deno.land/std@$STD_VERSION/collections/mod.ts";
 * import { assertEquals } from "https://deno.land/std@$STD_VERSION/testing/asserts.ts";
 *
 * const usersById = {
 *     'a5ec': { name: 'Mischa' },
 *     'de4f': { name: 'Kim' },
 * }
 * const namesById = mapValues(usersById, it => it.name)
 *
 * assertEquals(namesById, {
 *     'a5ec': 'Mischa',
 *     'de4f': 'Kim',
 * });
 * ```
 */
export declare function mapValues<T, O>(record: Readonly<Record<string, T>>, transformer: (value: T) => O): Record<string, O>;

export { }