pan>.t&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;string&nbsp;list<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;touch&nbsp;:&nbsp;t&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;unit<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;chmod&nbsp;:&nbsp;t&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;int&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;unit<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;with_flock&nbsp;:&nbsp;t&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;(<