&nbsp;&nbsp;}<br>
&nbsp;&nbsp;<span class="keyword">and</span>&nbsp;class_expr_desc&nbsp;=<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="constructor">Pcl_constr</span>&nbsp;<span class="keyword">of</span>&nbsp;<span class="constructor">Longident</span>.t&nbsp;<span class="constructor">Asttypes</span>.loc&nbsp;*&nbsp;<span class="constructor">Parsetree</span>.core_type&nbsp;list<br>
&nbsp;&nbsp;&nbsp;&nbsp;<span class="keywordsign">|</span>&nbsp;<span class="constructor">Pcl_structure</span>&nbsp;<spa