class="type">string</code> </pre>

<pre><span id="TYPEusage_msg"><span class="keyword">type</span> <code class="type"></code>usage_msg</span> = <code class="type">string</code> </pre>

<pre><span id="TYPEanon_fun"><span class="keyword">type</span> <code class="type"></code>anon_fun</span> = <code class="type">string -&gt; unit</code> </pre>

<pre><span id="VALparse"><span class="keyword">val</span> parse</span> : <code class="type">(<a href="Arg.html#TYPEkey">key</a> * <a href="Arg.html#TYPEspec">spec</a> *