de><a href="../../../../../../../../com/lark/oapi/service/im/v1/model/ChatChange.html" title="com.lark.oapi.service.im.v1.model中的类">ChatChange</a></code></td>
<td class="colLast"><span class="typeNameLabel">P2ChatUpdatedV1Data.</span><code><span class="memberNameLink"><a href="../../../../../../../../com/lark/oapi/service/im/v1/model/P2ChatUpdatedV1Data.html#getBeforeChange--">getBeforeChange</a></span>()</code>&nbsp;</td>
</tr>
</tbody>
</table>
<table class="useSummary" border="0" cellpadding="3" ce