ences.</span>
        <span class="n">model_predictions</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">query_instance</span><span class="p">)</span>
        <span class="c1"># number of output nodes of ML model</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">num_output_nodes</span> <span class="o">=</span> <span class="kc">None</span>
        <span class="k">if</sp