ass="w"> </span><span class="nf">one_annealing_step</span><span class="p">(</span><span class="n">a</span><span class="p">):</span>
<span class="w">            </span><span class="sd">&quot;&quot;&quot;Executes one annealing step. The random seed is self.seed + a.&quot;&quot;&quot;</span>

            <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">verbosity</span> <span class="o">&gt;</span> <span class="o">-</span><span class="mi">1</span><span class="p">:</sp