 <span class="o">=</span> <span class="s1">&#39;max&#39;</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">str</span><span class="p">:</span>

<span class="w">    </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd">    Gets best persistent checkpoint path of provided trial.</span>

<span class="sd">    Args:</span>
<span class="sd">        trial: The log directory of a trial instance which contains</span>
<span class="sd">                all the checkpoints</span>
<