pan></code></div><div class="spec-doc"><p><code>sub_find filter sub</code> returns the expression associated to the first identifier that satisfies <code>filter</code>. Raise <code>Not_found_s/Caml.Not_found</code> if there isn't one.</p></div></div><div class="odoc-spec"><div class="spec value" id="val-sub_filter" class="anchored"><a href="#val-sub_filter" class="anchor"></a><code><span><span class="keyword">val</span> sub_filter : <span><span>( <span><a href="../../IR/Ident/index.html#type-t">IR.Ident.t</