php 8 - Private methods cannot be final

[murraydailymaverick]

Warning: Private methods cannot be final as they are never overridden by other classes in /wp-content/plugins/disable-cart-fragments-littlebizzy/helpers/singleton.php on line 75

ref https://php.watch/versions/8.0/final-private-function

Please could you update, the result is a warning in php 8

id suggest

/** * Disallow clone use and overwriting */ private function __clone() {}