iases/identity/id/"><code>Id</code></a> that will be used to indicate which checkpoint to move to, based on the parameter the callback will receive (and which is most likely a DOM event).</p></td></tr><tr><th><code>getCheckpointIdDeps<span class="operator">?</span></code></th><td><code>DependencyList</code></td><td><p>An optional array of dependencies for the <code>getCheckpointId</code> function, which, if any change, result in the regeneration of the callback. This parameter defaults to an empty array.</p