I want to return a function and have it evaluated in the calling module
define(function() {
  var stage = {
    before: {
      createCanvas: function() {
        return function() {
          before(function(done) {
            this.canvas = new dropchart.Canvas({
              canvas: argsFor.canvas(),
              data: argsFor.data()
            });
            done();
          });
        };
      }
    }
  };
  return stage;
});

define(['jquery', 'dropchart', 'argsFor', 'stage'],
  function($, dropchart, argsFor, stage) {

  var should = chai.should();
  var xAxisSpec = {

    run: function() {

      describe('xAxis', function() {

        stage.before.createCanvas();

        ...