</span><span class="p">,</span> <span class="n">submission_rate</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">volume_size</span><span class="o">=</span><span class="k">lambda</span><span class="p">:</span> <span class="n">np</span><span class="o">.</span><span class="n">random</span><span class="o">.</span><span class="n">randint</span><span class="p">(</span><span class="mi">5</span><span class="p">,</span> <span class="mi">20</span><span class="p">))</span