<span class="n">key</span><span class="p">,</span> <span class="n">val</span><span class="p">,</span> <span class="mi">0</span><span class="p">]</span>
                <span class="k">else</span><span class="p">:</span>
                    <span class="n">filtered_transactions</span><span class="p">[</span><span class="n">fs</span><span class="p">][</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="n">x</span> <span class="o">+</span> <span