 class="n">signal</span><span class="o">.</span><span class="n">default_int_handler</span><span class="p">)</span>

        <span class="n">accumulated_data</span> <span class="o">=</span> <span class="p">[]</span>
        <span class="n">agg_future</span> <span class="o">=</span> <span class="kc">None</span>

        <span class="c1"># Attach and run until a SIGINT is received.</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">logger</span><span class="o">.</span><span clas