eturns</th><td><code><span class="builtin">Promise</span><span class="operator">&lt;</span><span class="builtin">boolean</span><span class="operator">></span></code></td><td><p></p></td></tr></table></div><p>This is one of the functions use to sanitize the data that is being sent from a client. Perhaps you might want to make sure the server-stored data adheres to a particular schema, or you might want to make certain data read-only. Remember that you cannot trust the client to only send data that the server