code: function() {
      var ce=this.childElements;
      if (!ce || !ce.length) {
        return;
      }
      var cw;
      for (var i=0,sz=ce.length;sz>i;i++) {
        cw=ce[i].ctlWrapper;
        if (cw && !cw.initialized) {
          cw.init(null,this.controller);
        }
      }
    }
docs: Initializes the attribute elements of type component that have not been
  already initialized