lass="n">url</span><span class="p">,</span> <span class="n">dtype</span><span class="o">=</span><span class="p">{</span><span class="s1">&#39;dbn&#39;</span><span class="p">:</span> <span class="nb">str</span><span class="p">})</span>
        <span class="n">df</span><span class="p">[</span><span class="s2">&quot;ay&quot;</span><span class="p">]</span> <span class="o">=</span> <span class="n">ay</span>
        <span class="n">df</span><span class="o">.</span><span class="n">rename</span><span class="p">(</s