n class="op">:</span>&nbsp;</span><span class="r"></span></p>
    <p class="pln"><span class="n"><a id="t41" href="#t41">41</a></span><span class="t">    <span class="str">r"""The cross-entropy loss function.</span>&nbsp;</span><span class="r"></span></p>
    <p class="pln"><span class="n"><a id="t42" href="#t42">42</a></span><span class="t"><span class="str">    """</span>&nbsp;</span><span class="r"></span></p>
    <p class="run"><span class="n"><a id="t43" href="#t43">43</a></span><span class="t">    <sp