an><span class="n">param_groups</span><span class="p">:</span>
            <span class="n">params</span><span class="p">[</span><span class="s1">&#39;</span><span class="si">{}</span><span class="s1">_learning_rate&#39;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">param</span><span class="p">[</span><span class="s1">&#39;name&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">lower</span><span class="p">())]</span> <span class="o"