;</span>&nbsp;<span class="constructor">UnixLabels</span>.file_descr&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="constructor">UnixLabels</span>.file_descr<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;dup2&nbsp;:<br>
&nbsp;&nbsp;&nbsp;&nbsp;?cloexec:bool&nbsp;<span class="keywordsign">-&gt;</span><br>
&nbsp;&nbsp;&nbsp;&nbsp;src:<span class="constructor">UnixLabels</span>.file_descr&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;dst:<span class="constructor">UnixLabels</span>.fil