Ember CLI import ES6 file to ember-cli-builds.js

So the ember-cli-builds.js file clearly states

// If the library that you are including contains AMD or ES6
// modules that you would like to import into your application
// please specify an object with the list of modules as keys
// along with the exports of each module as its value.

I'm importing regular javascript files this way

app.import('vendor/global.js');

but what is the proper way to "specify an object with the list of modules as keys along with the exports of each module as it's value"?

At the "AMD Javascript modules" heading of the guides, it is described like that:

Provide the asset path as the first argument, and the list of modules and exports as the second.

app.import('bower_components/ic-ajax/dist/named-amd/main.js', {
  exports: {
    'ic-ajax': [
      'default',
      'defineFixture',
      'lookupFixture',
      'raw',
      'request'
    ]
  }
});

You can now import them in your app. (e.g. import { raw as icAjaxRaw } from 'ic-ajax';)

Reference From Guide