span> <span class="n">linestyle</span> <span class="o">=</span> <span class="s1">&#39;-&#39;</span><span class="p">,</span> <span class="n">axh</span> <span class="o">=</span> <span class="n">ax</span><span class="p">,</span> <span class="n">linewidth</span> <span class="o">=</span> <span class="mf">1.25</span><span class="p">)</span>
            <span class="n">ax</span><span class="o">.</span><span class="n">text</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span><span class="o