ss="mi">0</span><span class="p">]]</span>
            <span class="n">scores</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">predict_fn</span><span class="p">(</span><span class="n">candidate_cfs</span><span class="p">)</span>
            <span class="n">validity</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">decide_cf_validity</span><span class="p">(</span><span class="n">scores</span><span class="p">)<