code: function() {
  			this._ExtensionHelper = ExtensionHelper;
  			this._ColumnResizeHelper = ColumnResizeHelper;
  			this._InteractiveResizeHelper = InteractiveResizeHelper;
  			this._ReorderHelper = ReorderHelper;
  			this._ExtensionDelegate = ExtensionDelegate;
  			this._RowHoverHandler = RowHoverHandler;
  			this._KNOWNCLICKABLECONTROLS = KNOWNCLICKABLECONTROLS;
  		}
docs: Enables debugging for the extension. Internal helper classes become accessible.
  
  @private