es6 Bootstrap with traceur

-bootstrap.js

'use strict';

var setup = require('./server/util/_setup')
var config = setup.initConfig(process.env.env || 'dev')
setup.initGlobals(config)

require('./index').run()

-index

// express app goes here

-test-server-bootstrap.coffee

require('./setup/flavor')

{initGlobals,initConfig} = require('./../../server/util/_setup')
initGlobals(initConfig('test'))

describe 'Server: ', ->

  @timeout(4000)

  before (done) ->
    @timeout(10000)
    global.logging    = false
    global.app        = require('../../index').run()
    global.stubs      = SETUP.initStubs()
    testHttpHelpers.init(app)

    setTimeout(( -> SETUP.init(done) ), 100)


  beforeEach ->
    LOGOUT()


  describe 'Session: ',        require('./sessionSpec')

server-util-es6.js

var traceur = require('traceur')
require('traceur-source-maps').install(traceur)
traceur.require.makeDefault(function (filePath) {
  return !~filePath.indexOf('node_modules')// && !~filePath.indexOf('test') != 0
})

Where's _setup?

require('./server/util/_setup')

How does setup return a single object?

var setup = require('./server/util/_setup')

And a tuple?

{initGlobals,initConfig} = require('./../../server/util/_setup')