sample.js

(function () {
  function Foo() {
  }
  Foo.prototype = {
    init: function () {
      var collections = {
        foo:  new entities.collections.Foo(),
        bar:  new entities.collections.Bar(),
        hoge: new entities.collections.Hoge(),
        fuga: new entities.collections.Fuga()
        fizz: new entities.collections
        bazz: new entities.collections.Bazz()
      };
    }
  };
});