an> - Method in class picocli.<a href="../info.picocli/picocli/CommandLine.Model.ArgSpec.html" title="class in picocli">CommandLine.Model.ArgSpec</a></dt>
<dd>
<div class="block">Returns a custom <code>IParameterPreprocessor</code> to either replace or complement picocli's parsing logic
 for the parameter(s) of this option or position.</div>
</dd>
<dt><span class="memberNameLink"><a href="../info.picocli/picocli/CommandLine.Model.CommandSpec.html#preprocessor()">preprocessor()</a></span> - Method in class p