s="constructor">Ptyp_extension</span>&nbsp;<span class="keyword">of</span>&nbsp;<span class="constructor">Parsetree</span>.extension<br>
&nbsp;&nbsp;<span class="keyword">and</span>&nbsp;package_type&nbsp;=<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="constructor">Longident</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="