pan><span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
        <span class="c1"># samples</span>
        <span class="n">samples</span> <span class="o">=</span> <span class="bp">self</span><span class="p">(</span><span class="n">batch_size</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">batch_size</span><span class="p">,</span> <span class="n">param</span><span class="o">=</span><span c