text: // dependencies
  define(['plugin/charts/nvd3/common/wrapper'], function(NVD3) {
  
  // widget
  return Backbone.Model.extend({
      initialize: function(app, options) {
          options.type = 'multiBarChart';
          options.makeConfig = function(nvd3_model) {
              nvd3_model.stacked(true);
          };
          new NVD3(app, options);
      }
  });
  
  });