code: function (classes, printOptions) {
                  classes = classes.replace(/(\s|^)\s*xPrint\w*/g, '');
                  if (printOptions == "adaptX") {
                      classes += " xPrintAdaptX";
                  } else if (printOptions == "adaptY") {
                      classes += " xPrintAdaptY";
                  } else if (printOptions == "adaptXY") {
                      classes += " xPrintAdaptX xPrintAdaptY";
                  } else if (printOptions == "hidden") {
                      classes += " xPrintHide";
                  }
                  return classes;
              }
docs: Convert print options into a set of CSS classes and add them to the provided set of classes.
  @param {String} classes Set of classes separated by a space (e.g. className property). If print options
  CSS classes are already present in this string, they will be removed.
  @param {aria.templates.CfgBeans:PrintOptions} printOptions print options
  @return {String} the updated set of classes.