"kc">None</span><span
        class="p">,</span> <span class="n">data</span><span class="o">=</span><span class="kc">None</span><span
        class="p">,</span> <span class="n">inlast</span><span class="o">=</span><span class="kc">False</span><span
        class="p">,</span> <span class="n">priority</span><span class="o">=</span><span class="kc">None</span><span
        class="p">):</span>

        <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><spa