 class="o">-</span> <span class="n">timeStamps</span><span class="p">[</span><span class="n">i</span><span class="p">])</span> <span class="o">&lt;=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_period</span><span class="p">:</span>
                <span class="n">per</span> <span class="o">+=</span> <span class="mi">1</span>
        <span class="k">return</span> <span class="n">per</span>
    
    <span class="k">def</span> <span class="nf">_getPerSup</span><span class="p">(</