class="colLast" scope="row">
<div class="block">Models the usage help message specification and can be used to customize the usage help message.</div>
</th>
</tr>
<tr class="rowColor" id="i73">
<td class="colFirst"><a href="picocli/CommandLine.MutuallyExclusiveArgsException.html" title="class in picocli">CommandLine.MutuallyExclusiveArgsException</a></td>
<th class="colLast" scope="row">
<div class="block">Exception indicating that the user input included multiple arguments from a mutually exclusive group.<