 class="o">**</span> <span class="mi">3</span><span class="p">)</span><span class="o">.</span><span class="n">sum</span><span class="p">()</span> <span class="o">+</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">relation</span><span class="o">.</span><span class="n">abs</span><span class="p">()</span> <span class="o">**</span> <span class="mi">3</span><span class="p">)</span><span class="o">.</span><span class="n">sum</span><span class="p">()</span>
       