<a href="#val-mk_let" class="anchor"></a><code><span><span class="keyword">val</span> mk_let : 
  <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">&#45;&gt;</span></span>
  <span><a href="Context/index.html#type-t">Context.t</a> <span class="arrow">&#45;&gt;</span></