a></span><span class="op">(</span></span>
<span>      optimizer <span class="op">=</span> <span class="va">tf</span><span class="op">$</span><span class="va">keras</span><span class="op">$</span><span class="va">optimizers</span><span class="op">$</span><span class="fu">Adam</span><span class="op">(</span></span>
<span>        <span class="va">hp</span><span class="op">$</span><span class="fu">Choice</span><span class="op">(</span><span class="st">'learning_rate'</span>,</span>
<span>                  value