n class="constructor">Depend</span>.bound_map&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="constructor">Parsetree</span>.structure&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="constructor">Depend</span>.bound_map<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;add_signature_binding&nbsp;:<br>
&nbsp;&nbsp;&nbsp;&nbsp;<span class="constructor">Depend</span>.bound_map&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;<span class="constructor">Parsetree</span>.signature&nb