lru-memoizer is a Node.js module that provides a simple way to memoize the results of asynchronous functions using an LRU cache. It's designed for developers who need to cache the results of expensive or frequently called async functions, such as API requests or database queries, to improve performance. The module allows customization of cache keys, TTL, and other LRU cache options, making it suitable for a wide range of use cases where caching async function results is beneficial.