n><span class="nam">bs</span> <span class="op">=</span> <span class="op">[</span><span class="op">]</span>&nbsp;</span><span class="r"></span></p>
    <p class="pln"><span class="n"><a id="t39" href="#t39">39</a></span><span class="t">&nbsp;</span><span class="r"></span></p>
    <p class="run"><span class="n"><a id="t40" href="#t40">40</a></span><span class="t"><span class="key">class</span> <span class="nam">CELoss</span><span class="op">(</span><span class="nam">AbsLoss</span><span class="op">)</span><spa