class="constructor">UnixLabels</span>.file_descr&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="constructor">UnixLabels</span>.socket_float_option&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;float<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;setsockopt_float&nbsp;:<br>
&nbsp;&nbsp;&nbsp;&nbsp;<span class="constructor">UnixLabels</span>.file_descr&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="constructor">UnixLabels</span>.socket_float_option&nbsp;<span class="key