span> <span class="n">batch_size</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">nuisance_dim</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>

        <span class="bp">self</span><span class="o">.</span><span class="n">s</span> <span class="o">=</span> <span class="n">s</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">_S</span>
        <span class="bp">self</span><span class="