# What is the lesson here?
That said, it's important to recognize that locking in itself is not bad. It does, in fact, serve an important purpose to ensure that applications properly and orderly consume or produce data. The key challenge is with the original manual implementation of it using APIs like getReader() and releaseLock(). With the arrival of automatic lock and reader management with async iterables, dealing with locks from the users point of view became a lot easier.，推荐阅读safew官方版本下载获取更多信息
Joseph is currently being helped by a King's Trust youth support worker to help them find paid work.，这一点在heLLoword翻译官方下载中也有详细论述
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