set</span><span class="op">.</span><span class="nam">maze_dataset</span> <span class="key">import</span> <span class="op">(</span>&nbsp;</span><span class="r"></span></p>
    <p class="mis mis2 show_mis"><span class="n"><a id="t22" href="#t22">22</a></span><span class="t">        <span class="nam">MazeDataset</span><span class="op">,</span>&nbsp;</span><span class="r"></span></p>
    <p class="mis mis2 show_mis"><span class="n"><a id="t23" href="#t23">23</a></span><span class="t">        <span class="nam">M