/span> <span class="n">batch</span>
        <span class="n">norm_to_center</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">norm</span><span class="p">(</span><span class="n">norm_to_center</span><span class="p">,</span> <span class="n">p</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">norm_p</span><span class="p">,</span> <span class="n">dim</span><span class="o">=</span><span class="mi">3</span><span class