class="k">assert</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">Portfolio</span><span class="p">)</span></div>

<div class="viewcode-block" id="Test_portfolio_extractor.test_extractor_get_portfolio_date"><a class="viewcode-back" href="../../../docs/source/time_series_transform.test.html#time_series_transform.test.test_stock_base.Test_portfolio_extractor.test_extractor_get_portfolio_date">[docs]</a>    <span class="nd">@pyt