import type { CommonLogger } from '../log/commonLogger';
export interface MemoOpts {
    logger?: CommonLogger;
}
/**
 * Memoizes the method of the class, so it caches the output and returns the cached version if the "key"
 * of the cache is the same. Key, by defaul, is calculated as `JSON.stringify(...args)`.
 * Cache is stored indefinitely in internal Map.
 * There is more advanced version of memo decorator called `memoCache`.
 *
 * Supports dropping it's cache by calling .dropCache() method of decorated function (useful in unit testing).
 */
export declare const memoSimple: (opt?: MemoOpts) => MethodDecorator;