Export Collection for Test Only

Hi there!

I’m trying to export a collection outside my package, but I want to make it only visible when running in Test Mode. I know there is an option to do this, which work like this I guess:

Package.onUse(function(api) {

  api.export('collectionOnlyForTest', ['client', 'server'], { testOnly: true });

I am importing it like this:

import { collectionOnlyForTest } from 'meteor/myPackage';

If I import it in Normal Mode, I have access to it, which I don’t want.

I don’t know what I’m missing.

Thanks so much.