p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> <span class="n">item</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="kc">None</span><span class="p">):</span>
</span><span id="sample_prices-16"><a href="#sample_prices-16"><span class="linenos">16</span></a><span class="w">    </span><span class="sd">&quot;&quot;&quot;Sample prices&quot;&quot;&quot;</span>
</span><span id="sample_prices-17"><a h