class="constructor">Parsetree</span>.signature&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;unit<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;add_implementation&nbsp;:&nbsp;<span 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;unit<br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;add_implementation_binding&nbsp;:<br>
&nbsp;&nbsp;&nbsp;&nbsp;<spa