="n">TimeRange</span><span class="p">(</span>
                    <span class="bp">self</span><span class="o">.</span><span class="n">start</span> <span class="o">+</span> <span class="n">window_number</span> <span class="o">*</span> <span class="n">window_period</span><span class="p">,</span>
                    <span class="bp">self</span><span class="o">.</span><span class="n">start</span> <span class="o">+</span> <span class="n">window_number</span> <span class="o">*</span> <span class="n">window_period