"constructor">Asttypes</span>.closed_flag&nbsp;*<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="constructor">Asttypes</span>.label&nbsp;list&nbsp;option<br>
&nbsp;&nbsp;&nbsp;&nbsp;<span class="keywordsign">|</span>&nbsp;<span class="constructor">Ptyp_poly</span>&nbsp;<span class="keyword">of</span>&nbsp;string&nbsp;<span class="constructor">Asttypes</span>.loc&nbsp;list&nbsp;*&nbsp;<span class="constructor">Parsetree</span>.core_type<br>
&nbsp;&nbsp;&nbsp;&nbsp;<span class="keywordsign">|