TypeScript definition for builtin 'net' NodeJS types?

I am trying to write a TCP client application, and for that the builtin 'net' package seems to do the job. However, I am not able to find the TypeScript definitions for the package.

https://nodejs.org/api/net.html

Since it is built into NodeJs, I am almost sure it exists, but it cannot find any information about it anywhere.

Thanks!

via soren.bendtsen