I finally found a solution to have our typescript definition file work both in module and no-module environments. Practically this means that tsc will validate both of those code snippets:

WoT.produce(td).then((thing:WoT.ExposedThing)=>{/*...*/});

import {produce,ExposedThing} from "WoT";
produce(td).then((thing:ExposedThing)=>{/*...*/});

As a example the first one might be written inside WoT scripts (which may not support a module system) and the latter for runtimes who want to use node-wot as a library.

Since I had to format the file it is quite difficult to undestand the change. Essentially I changed the declaration of the namespace from export as namespace WoT; to:

declare namespace WoT {
/* declarations */
}

Finally I exposed every field in the namespace as a module with the following:

declare module "WoT" {
    export = WoT;
}

I created a PR since I think this is the final solution.

Fixes #215 .