ts or stops loading or saving.</p></td></tr><tr><th class="right">returns</th><td><code><span class="builtin">string</span></code></td><td><p></p><p>A unique <a href="/api/common/type-aliases/identity/id/"><code>Id</code></a> for the listener that can later be used to remove it.</p><p></p></td></tr></table></div><p>The provided listener is a <a href="/api/persisters/type-aliases/listener/statuslistener/"><code>StatusListener</code></a> function, and will be called with a reference to the <a href="/api/persi