een predictions and targets</span>
<span class="sd">    &quot;&quot;&quot;</span>
    <span class="k">return</span> <span class="p">((</span><span class="n">predictions</span> <span class="o">-</span> <span class="n">targets</span><span class="p">)</span> <span class="o">**</span> <span class="mf">2.0</span><span class="p">)</span><span class="o">.</span><span class="n">mean</span><span class="p">()</span></div>



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