<p>An array of name-value pairs for the parameters in the group. Each element in the array represents a single parameter.</p> <note> <p> <code>record-ttl-millis</code> and <code>query-ttl-millis</code> are the only supported parameter names. For more details, see <a href="https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DAX.cluster-management.html#DAX.cluster-management.custom-settings.ttl">Configuring TTL Settings</a>.</p> </note>