f you are
compelled to do something like
`mapState.value().get(inputEvent.getKey())`, you should probably be using
`ValueState` instead of the `MapState`. As we want to store *multiple values
per event key*, in our case, `MapState` is the right choice.
<br/>
<center>
<img src="/img/blog/patterns-blog-3/keyed-state-scoping.png" width="800px" alt="Figure 4: Keyed State Scoping"/>
<br/>
<i><small>Figure 4: Keyed State Scoping</small></i>
</center>
</div>
<p>As described in the <a href="/news/2020/01/15/demo-fr