r">UnixLabels</span>.file_descr&nbsp;<span class="keywordsign">-&gt;</span><br>
&nbsp;&nbsp;&nbsp;&nbsp;stdout:<span class="constructor">UnixLabels</span>.file_descr&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;stderr:<span class="constructor">UnixLabels</span>.file_descr&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;int<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;open_process_in&nbsp;:&nbsp;string&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="constructor">Pervasives</span>.