-term">term</a></span></code></div></div><div class="odoc-spec"><div class="spec value" id="val-mk_app" class="anchored"><a href="#val-mk_app" class="anchor"></a><code><span><span class="keyword">val</span> mk_app : 
  <span>?pos:<span>(<span class="xref-unresolved">Stdlib</span>.Lexing.position * <span class="xref-unresolved">Stdlib</span>.Lexing.position)</span> <span class="arrow">&#45;&gt;</span></span>
  <span>?typ:<span><a href="../RType/index.html#type-t">RType.t</a> option</span> <span class="arrow"