td width="20px"></td><td><code><span class="label">p_item</span>:<a href="../messaging/MessageItem.html">MessageItem</a></code> (default = <code>null</code>)<code></code></td>
</tr>
<tr>
<td class="paramSpacer">&nbsp;</td>
</tr>
<tr>
<td width="20px"></td><td><code><span class="label">p_userID</span>:String</code> (default = "<code></code>")<code></code></td>
</tr>
</table>
</div>
<a name="constantDetail"></a>
<div class="detailSectionHeader">Constant detail</div>
<a name="CONFIGURATION_CHANGE"></a>
<table 