an</span><span style="color: #000000">, </span><span style="color: #001080">batchSize</span><span style="color: #000000">: </span><span style="color: #267F99">Int</span><span style="color: #000000">): [</span><span style="color: #267F99">Network</span><span style="color: #000000">!]!</span>
<span style="color: #000000">  </span><span style="color: #001080">descendants</span><span style="color: #000000">(</span><span style="color: #001080">limit</span><span style="color: #000000">: </span><span style="color: