lass="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">mu</span><span class="p">,</span> <span class="n">sigma2</span><span class="p">,</span> <span class="n">learnable</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
        <span class="nb">super</span><span class="p">(</span><span class="n">IndependentGaussian</span><span class="p">,</span> <span class="bp">self</span><span class=