/**
 * Purge any previously memoized calls for a function passed to {@link memoize} or
 * {@link memoizeWeak}.
 */
export declare function purgeMemoize(fn: Function): void;
/**
 * Clears a specific memoized call.
 *
 * @returns `true` if it was cleared, `false` if not found
 */
export declare function clearMemoize<T, R>(fn: (...args: T[]) => R, ...args: T[]): boolean;
/**
 * Calls the passed {@link Function} but memoize the result based on the function arguments.
 * The memoize state is stored globally based on the function ref.
 *
 * Matching calls to this helper will return the same result.
 * Holds the object parameters (i.e., non-nullable typeof 'object') weakly.
 */
export declare function callMemoize<T, R>(fn: (...args: T[]) => R, ...args: T[]): R;
/**
 * Build a memoized version of the passed function.
 */
export declare function memoize<T, R>(fn: (...args: T[]) => R): (...args: T[]) => R;