cluded in the sample-specific model</span>
        <span class="n">protected</span> <span class="o">=</span> <span class="nb">set</span><span class="p">([</span><span class="n">k</span> <span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">result</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> <span class="k">if</span> <span class="n">v</span><span class="p">])</span>
        <span c