cls</span><span class="p">,</span>
        <span class="n">structure</span><span class="p">:</span> <span class="n">Structure</span><span class="p">,</span>
        <span class="n">reciprocal_density</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="nb">int</span><span class="p">]</span> <span class="o">=</span> <span class="mi">50000</span><span class="p">,</span>
        <span class="o">**</span><span class="n">kwargs</span>
    <span class="p">):</span>
  