>
<span class="sd">        A 2D numpy array</span>

<span class="sd">    :returns: (float) Maximum birth time for the given diagram </span>

<span class="sd">    &quot;&quot;&quot;</span>
    <span class="k">try</span><span class="p">:</span>
        <span class="n">m</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">Dgm</span><span class="p">[:,</span> <span class="mi">0</span><span class="p">])</span>
        <span class="k">if</span> <span class="n">m</spa