/// <reference types="@rbxts/compiler-types" />
/**
 * An unchecked memoization function. Will retain memoized data forever.
 *
 * @param memoizeFunction
 * @returns
 */
export declare function memoize<T, U>(memoizeFunction: (index: T) => U): (index: T) => U;
/**
 * A memoization function that uses the {@linkcode LFUCache} data structure to
 * free up items that aren't frequently used.
 *
 * @param memoizeFunction
 * @param capacity
 * @returns
 */
export declare function memoizeFrequencyCache<T, U extends defined>(memoizeFunction: (index: T) => U, capacity?: number): (index: T) => U;
/**
 * A memoization function that uses the {@linkcode LRUCache} data structure to
 * free up items that aren't recently used.
 *
 * @param memoizeFunction
 * @param capacity
 * @returns
 */
export declare function memoizeRecentCache<T extends defined, U extends defined>(memoizeFunction: (index: T) => U, capacity?: number): (index: T) => U;