"kc">None</span><span class="p">,</span> <span class="n">timeSeriesCol</span><span class="p">,</span> <span class="n">mainCategoryCol</span><span class="p">)</span>
    <span class="k">return</span> <span class="n">pio</span><span class="o">.</span><span class="n">from_feather</span><span class="p">(</span><span class="n">columns</span><span class="p">)</span></div>

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