r">Pconst_float</span>&nbsp;<span class="keyword">of</span>&nbsp;string&nbsp;*&nbsp;char&nbsp;option<br>
&nbsp;&nbsp;<span class="keyword">type</span>&nbsp;attribute&nbsp;=&nbsp;{<br>
&nbsp;&nbsp;&nbsp;&nbsp;attr_name&nbsp;:&nbsp;string&nbsp;<span class="constructor">Asttypes</span>.loc;<br>
&nbsp;&nbsp;&nbsp;&nbsp;attr_payload&nbsp;:&nbsp;<span class="constructor">Parsetree</span>.payload;<br>
&nbsp;&nbsp;&nbsp;&nbsp;attr_loc&nbsp;:&nbsp;<span class="constructor">Location</span>.t;<br>
&nbsp;&nbsp;}<br>
&n