text: define(function(require) {
      'use strict';
  
      var _ = require('underscore'),
  
          jsonThreeSources = require('json!../json/groupedbarDataThreeSources.json');
  
  
      function GroupedBarChartDataBuilder(config){
          this.Klass = GroupedBarChartDataBuilder;
  
          this.config = _.defaults({}, config);
  
          this.with3Sources = function(){
              var attributes = _.extend({}, this.config, jsonThreeSources);
  
              return new this.Klass(attributes);
          };
  
          this.build = function() {
              return this.config;
          };
      }
  
      return {
          GroupedBarChartDataBuilder: GroupedBarChartDataBuilder
      };
  
  });
  