pan><span class="keyword">val</span> return_alloc_not_null : 
  <span><a href="../../../PulseAttribute/index.html#type-allocator">Pulselib.PulseBasicInterface.Attribute.allocator</a> <span class="arrow">&#45;&gt;</span></span>
  <span><span><a href="../../../../IR/Exp/index.html#type-t">IR.Exp.t</a> option</span> <span class="arrow">&#45;&gt;</span></span>
  <span><span class="label">initialize</span>:bool <span class="arrow">&#45;&gt;</span></span>
  <span>unit <a href="../../index.html#type-model_monad">m