nit</span><span class="p">(</span><span class="nv">manufacturer</span><span class="p">:</span> <span class="kt">Manufacturer</span><span class="p">?</span> <span class="o">=</span> <span class="kc">nil</span><span class="p">,</span> <span class="nv">product</span><span class="p">:</span> <span class="kt">UInt16</span><span class="p">?</span> <span class="o">=</span> <span class="kc">nil</span><span class="p">)</span></code></pre>

                          </div>
                        </div>
             