n class="p">{</span><span class="s1">&#39;c&#39;</span><span class="p">:</span> <span class="kc">None</span><span class="p">,</span> <span class="s1">&#39;Nc&#39;</span><span class="p">:</span><span class="kc">None</span><span class="p">,</span><span class="s1">&#39;F&#39;</span><span class="p">:</span><span class="kc">None</span><span class="p">,</span><span class="s1">&#39;FLL&#39;</span><span class="p">:</span><span class="kc">None</span><span class="p">}}</span>

<span class="n">__all__</span> <span cla