"op">)</span></span>
<span><span class="va">hp</span><span class="op">$</span><span class="fu">Choice</span><span class="op">(</span><span class="st">'learning_rate'</span>, <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="fl">1e-1</span>, <span class="fl">1e-3</span><span class="op">)</span><span class="op">)</span></span>
<span><span class="va">hp</span><span class="op">$</span><span class="fu">Int</span><span class="op">(</sp