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<section class="detail" id="undo(icyllis.modernui.core.UndoOwner[],int)">
<h3>undo</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">int</span>&nbsp;<span class="element-name">undo</span><wbr><span class="parameters">(<a href="UndoOwner.html" title="class in icyllis.modernui.core">UndoOwner</a>[]&nbsp;owners,
 int&nbsp;count)</span></div>
<div class="block">Perform undo of last/top <var>count</var> undo states.  The states impacted
 by this can be 