text: include('../background.js');
  
  /**
   * @class
   */
  uki.background.Multi = uki.newClass({
      init: function() {
          this._bgs = Array.prototype.slice.call(arguments, 0);
      },
      attachTo: function(comp) {
          for (var i=0, $this$_bgs$length = this._bgs.length; i < $this$_bgs$length; i++) {
              this._bgs[i].attachTo(comp);
          };
      },
      detach: function() {
          for (var i=0, $this$_bgs$length = this._bgs.length; i < $this$_bgs$length; i++) {
              this._bgs[i].detach();
          };
      }
  });