&gt;</span><span class="p">({</span>
  <span class="na">reducer</span><span class="p">:</span> <span class="nx">reducerFn</span><span class="p">,</span>
<span class="p">})</span> <span class="kd">as </span><span class="nx">TimerStore</span>

<span class="c1">// Create Timer and connect it to the Redux store.</span>
<span class="k">export</span> <span class="kd">const</span> <span class="nx">effectFn</span><span class="p">:</span> <span class="nx">EffectCallback</span> <span class="o">=</span> <span class="n