en a label which can be used to describe the actions that changed the <a href="/api/the-essentials/creating-stores/store/"><code>Store</code></a> before this checkpoint. This can be useful for interfaces that let users &#x27;Undo [last action]&#x27;.</p><section class="s2"><h2>Example</h2><p>This example shows a simple lifecycle of a <code>Checkpoints</code> object: from creation, to adding a checkpoint, getting the list of available checkpoints, and then registering and removing a listener for them.</p><pr