JSDoc for methods with multiple signatures

First I've thought about union types but they can solve only part of the problem. Original discussion started here. In case codeplex had been abandoned, I copy my question here.

Please take a look at this function. https://github.com/digitalbazaar/forge/blob/master/js/rsa.js#L802-L885 As you can see from comments there are a lot of ways to use it. If I need to make a type definitions for it (actually I do) with JSDoc Intellisense support, then I have to copy general function description like 10 times. This will make my definition 3 times longer than source function and also very hard to modify. In libraries like forge almost all functions have being made that way.

Can you give me some tip about making definitions in such circumstances?

先阅读 js/rsa.js#L802-L885 中链接的 forge 示例和复制的 CodePlex 讨论。该 issue 未指出 TypeScript 文件、测试或已达成一致的行为；在确定实现工作之前，先明确所需的 JSDoc 表示形式和验收标准。