wordsign">-&gt;</span>&nbsp;float&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;unit<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;getsockopt_error&nbsp;:&nbsp;<span class="constructor">UnixLabels</span>.file_descr&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="constructor">UnixLabels</span>.error&nbsp;option<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;open_connection&nbsp;:<br>
&nbsp;&nbsp;&nbsp;&nbsp;<span class="constructor">UnixLabels</span>.sockaddr&nbsp;<span class=