code: function($Cell) {
  			var oTable = this.getTable(),
  				bEnabled = $Cell.hasClass("sapUiTableSelAllEnabled");
  			oTable.$("sapUiTableGridCnt").removeAttr("role");
  
  			var mAttributes = ExtensionHelper.getAriaAttributesFor(
  				this, TableAccExtension.ELEMENTTYPES.COLUMNROWHEADER,
  				{enabled: bEnabled, checked: bEnabled && !oTable.$().hasClass("sapUiTableSelAll")}
  			);
  			ExtensionHelper.performCellModifications(this, $Cell, mAttributes["aria-labelledby"], mAttributes["aria-describedby"],
  				mAttributes["aria-labelledby"], mAttributes["aria-describedby"], null
  			);
  		}
docs: /*
  Modifies the labels and descriptions of the column row header.
  @see ExtensionHelper.performCellModifications