/**
 * Shared memory.
 *
 * @module memory
 * @license Apache-2.0
 * @copyright Mat. 2018-present
 */
import type { JSAnyObj } from "@xcmats/js-toolbox/type";
/**
 * Invoke function argument with a reference to shared memory.
 *
 * @function useMemory
 * @param f function to invoke on a shared memory
 * @returns {*}
 */
export declare function useMemory<T extends JSAnyObj>(f?: (x: T) => T): T;
/**
 * Extend shared memory with keys from provided extension object.
 * It throws when shared memory already have those keys.
 *
 * @function share
 * @param ext extension object
 * @returns extended memory object
 */
export declare function share<T extends JSAnyObj>(ext: T): T;