Missing Interceptable type in export ?

[fraxken]

Bug Description

While working on UT (with TypeScript) for one of our project we were unable to found the Interceptable type in the undici export.

https://github.com/nodejs/undici/blob/main/types/mock-interceptor.d.ts#L88

Reproducible By

//

Expected Behavior

Export the Interceptable type.

Environment

Node.js 16.13.x on Windows 10.

[fraxken]

I'm ok to send a PR if maintainer confirm this should be exported :)

[mcollina]

I think it's ok to export it!