Simple TypeScript type definitions for AMD modules

I wanted to write a TypeScript type definition file for a JavaScript module that I wrote last year, so that I could use it from within TypeScript in a seamless manner - with argument and return type annotations present. I considered porting it to TypeScript but since all that I really wanted was the type annotations, it seemed like a type definition file would be just the job and prevent me from maintaining the code in two languages (well, three, actually, since I originally ported it from C#).