ction</span><span class="p">.</span><span class="nx">call</span> <span class="k">this</span><span class="p">,</span> <span class="nx">token</span><span class="p">,</span> <span class="nx">i</span> <span class="o">-</span> <span class="mi">1</span> <span class="k">if</span> <span class="o">not</span> <span class="nx">token</span> <span class="o">or</span> <span class="nx">levels</span> <span class="o">&lt;</span> <span class="mi">0</span>
      <span class="k">if</span> <span class="nx">token</span><span cla