 class="bp">self</span><span class="o">.</span><span class="n">dependent_outcomes</span> <span class="o">=</span> <span class="kc">None</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">dependent_probabilities</span> <span class="o">=</span> <span class="kc">None</span>

    <span class="k">def</span> <span class="fm">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">:</span> <span class=