>)</span></span>
<span><span class="va">learn</span> <span class="op">=</span> <span class="fu"><a href="../reference/Learner.html">Learner</a></span><span class="op">(</span><span class="va">data</span>, <span class="fu"><a href="../reference/Net.html">Net</a></span><span class="op">(</span><span class="op">)</span>, loss_func <span class="op">=</span> <span class="va">nn</span><span class="op">$</span><span class="fu">NLLLoss</span><span class="op">(</span><span class="op">)</span>, opt_func <span class="