lass="o">.</span><span class="n">pointwise_activation_threshold</span><span class="p">)</span>

        <span class="n">centers_init</span> <span class="o">=</span> <span class="n">parameter_init_from_arg</span><span class="p">(</span>
            <span class="n">arg</span><span class="o">=</span><span class="n">centers_init</span><span class="p">,</span>
            <span class="n">size</span><span class="o">=</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n"