><span class="keyword">val</span> add_stack : 
  <span><span class="optlabel">?represents_multiple_values</span>:bool <span class="arrow">&#45;&gt;</span></span>
  <span><a href="../../AbsLoc/Loc/index.html#type-t">AbsLoc.Loc.t</a> <span class="arrow">&#45;&gt;</span></span>
  <span><a href="../Val/index.html#type-t">Val.t</a> <span class="arrow">&#45;&gt;</span></span>
  <span><a href="#type-t">t</a> <span class="arrow">&#45;&gt;</span></span>
  <a href="#type-t">t</a></span></code></div><div class="spec-d