an class="i">MyCustomTask</span>

<span class="c">// use custom functionality</span>
<span class="i">RandomNumberTask</span><span class="o">.</span><span class="i">RandomNumber</span>(<span class="n">2</span>,<span class="n">13</span>)
  <span class="o">|&gt;</span> <span class="i">tracefn</span> <span class="s">&quot;</span><span class="s">RandomNumber</span><span class="s">:</span><span class="s"> </span><span class="s">%</span><span class="s">d</span><span class="s">&quot;</span></pre>
</td>
</tr>
