ied, all listeners will be removed. Look at the event section of the documentation for more information.
                </td>
            </tr>
            <tr class="collapsible toggle" onclick="toggleTable('methodTable','onceEvent', this);">
                <td colspan="2"><span parent="onceEvent" class="right-caret" id="method_once"></span> once(<code>String event name, Function callback</code>)
                </td>
            </tr>
            <tr class="hidden" parent="onceEvent">
                <t