 implement this interface to specify an exit code that will be returned
 from the <a href="CommandLine.html#execute(java.lang.String...)"><code>execute</code></a> method when the command is successfully invoked.</div>
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<th class="colFirst" scope="row"><a href="CommandLine.IFactory.html" title="interface in picocli">CommandLine.IFactory</a></th>
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<div class="block">Factory for instantiating classes that are registered declaratively with annotation attribut