This value will be the
 same as the entry's label. This method will return an empty string if no
 radio button entry exists or none are selected.
</p><h3>Return Value</h3><p>The value of the selected radio button entry.</p></div></div>
</div><div class="member"><h2><span class="ddoc_anchor" id="Menu.addSeparator"></span>auto <span class="symbol">addSeparator</span>(this T)();
</h2>
<div class="declaration-description"><div class="sections"><p>Add a separator to the menu.
</p><h3>Return Value</h3><p>T