eggjs里面egg-bin启动函数里面一段typescript看不懂

Question

项目中用到了eggjs，跟着egg-bin，想看看它是如何启动node的。结果跟到这里看不懂了。

<F extends (...args: any[]) => Iterator<any>>(fn: F, ...args: Parameters<F>): Promise<ExtractType<ReturnType<F>>>;
default: Co;
co: Co;
wrap: <F extends (...args: any[]) => Iterator<any>>(fn: F) => (...args: Parameters<F>) => Promise<ExtractType<ReturnType<F>>>;

Answer 1

https://www.cnblogs.com/hellolol/p/11533207.html