@param e an event object containing the following fields:<ul>
<li>in index - a 0 based index specifying which action's description to return</li>
<li>out result - a localized string describing the specified action,
or null if the index lies outside the valid range</li>
</ul>
Returns a description of the specified action.
@param e an event object containing the following fields:<ul> <li>in index - a 0 based index specifying which action's description to return</li> <li>out result - a localized string describing the specified action, or null if the index lies outside the valid range</li> </ul>