r (top, right, bottom, left)</span>&nbsp;</span><span class="r"></span></p>
    <p class="mis show_mis"><span class="n"><a id="t176" href="#t176">176</a></span><span class="t">                        <span class="nam">edges_bool</span> <span class="op">=</span> <span class="op">[</span>&nbsp;</span><span class="r"></span></p>
    <p class="mis mis2 show_mis"><span class="n"><a id="t177" href="#t177">177</a></span><span class="t">                                <span class="nam">is_wall</span><span class="op