ident</span>.t&nbsp;<span class="constructor">Asttypes</span>.loc&nbsp;*<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&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;<span class="keyword">and</span>&nbsp;row_field&nbsp;=&nbsp;{<br>
&nbsp;&nbsp;&nbsp;&nbsp;prf_desc&nbsp;:&nbsp;<span class="constructor">Parsetree</span>.row_field_desc;<br>
&nbsp;&nbsp;&nbsp;&nbsp;prf_loc&nbsp