nit<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;umask&nbsp;:&nbsp;int&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;int<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;access&nbsp;:&nbsp;string&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;perm:<span class="constructor">UnixLabels</span>.access_permission&nbsp;list&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;unit<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;dup&nbsp;:&nbsp;?cloexec:bool&nbsp;<span class="keywordsign">-&gt