text: define([ 'backbone', 'require'],
    function (Backbone, require) {
      return Backbone.Collection.extend({
  
        initialize: function(models, opt){
  
          this.model  = function(attrs, opts) {
            var model;
  
            switch(1){
  
              default:
                if(!this.ClassTag)
                  this.ClassTag = require("SelectorManager/model/Selector");
                model = new this.ClassTag(attrs, opts);
  
            }
  
            return  model;
          };
  
        },
  
      });
  });
  