Or another way without the global:

    function myModuleReally() {
        return [useMe, testMe];
    }
    function myModule() { return myModuleReally()[0]; }

It'd be nice if the programming environment gave us a "can opener" (not globally available) to open up closures we've made -- like http://gbracha.blogspot.com/2012/07/seeking-closure-in-mirro... -- but we can do plenty without it.