Value</code></a> from being deleted on the server, or <code>true</code> to allow it. The default implementation returns <code>true</code> to allow deletion.</p><section class="s2"><h2>Example</h2><p>The following implementation will strip out any attempts by the client to delete the &#x27;userId&#x27; <a href="/api/store/type-aliases/store/value/"><code>Value</code></a>:</p><pre><code><span class="keyword">import</span> <span class="punctuation">{</span>TinyBasePartyKitServer<span class="punctuation">}</spa