sp;&nbsp;&nbsp;popen_loc&nbsp;:&nbsp;<span class="constructor">Location</span>.t;<br>
&nbsp;&nbsp;&nbsp;&nbsp;popen_attributes&nbsp;:&nbsp;<span class="constructor">Parsetree</span>.attributes;<br>
&nbsp;&nbsp;}<br>
&nbsp;&nbsp;<span class="keyword">and</span>&nbsp;open_description&nbsp;=&nbsp;<span class="constructor">Longident</span>.t&nbsp;<span class="constructor">Asttypes</span>.loc&nbsp;<span class="constructor">Parsetree</span>.open_infos<br>
&nbsp;&nbsp;<span class="keyword">and</span>&nbsp;open_dec