alue anchored" id="val-add_call"><a href="#val-add_call" class="anchor"></a><code><span><span class="keyword">val</span> add_call : 
  <span><a href="../PulseCallEvent/index.html#type-t">CallEvent.t</a> <span class="arrow">&#45;&gt;</span></span>
  <span><a href="../../IBase/Location/index.html#type-t">IBase.Location.t</a> <span class="arrow">&#45;&gt;</span></span>
  <span><span><a href="../PulseValueHistory/index.html#type-t">ValueHistory.t</a> <span class="xref-unresolved">CellId</span>.Map.t</span> <spa