ss="sd">        get the variance transaction length</span>
<span class="sd">        :return: variance transaction length</span>
<span class="sd">        :rtype: float</span>
<span class="sd">        &quot;&quot;&quot;</span>
        <span class="k">return</span> <span class="n">statistics</span><span class="o">.</span><span class="n">variance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">lengthList</span><span class="p">)</span></div>

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