对于初始接口中的每个方法，异步版本必须有一个返回类型更改为void的匹配方法和一个asynccallback类型的附加参数。

For each method in your original interface, the asynchronous version must have a matching method with the return type changed to void and an additional parameter of type AsyncCallback.

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现今大多数人称为“可口可乐”的东西指的是“传统可口可乐”，而市面上销售的则是配方修改过的新版本。

What most people refer to as "Coke" or "Coca-cola" is actually "Coca-cola Classic," since the now-discontinued "New Coke" was branded simply "Coke."

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在这个配方第二个排序的版本使用DSU就是因为这个，辅助的弹性的好处。

The second version of Sorter in this recipe USES DSU because of this, as well as auxiliary flexibility advantages.

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