lass="p">)</span>
<span class="n">adata_dict</span><span class="o">.</span><span class="n">add_stratification</span><span class="p">(</span><span class="n">strata_keys</span><span class="o">=</span><span class="p">[</span><span class="s1">&#39;is_origin&#39;</span><span class="p">])</span>
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<div class="highlight-ipython3 notranslate"><div class="highlight"><pre><span></span><span class="n">adat