pd.DataFrame</code> A pandas dataframe.</li>
</ul>

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<div class=" highlight hl-ipython3"><pre><span></span><span class="c1"># tests</span>

<span class="n">df</span> <span class="o">=</span> <span class="n">pd</span><span class="o">.</span><span class="n">DataFrame</span><span class="p">([</span>
    <span