UserServiceProvider.php

<?php

namespace Drupal\user;

use Drupal\Core\DependencyInjection\ContainerBuilder;
use Drupal\Core\DependencyInjection\ServiceModifierInterface;
class UserServiceProvider implements ServiceModifierInterface {
    
    /**
     * {@inheritdoc}
     */
    public function alter(ContainerBuilder $container) {
        if ($container->hasParameter('user.tempstore.expire')) {
            @trigger_error('The container parameter "user.tempstore.expire" is deprecated. Use "tempstore.expire" instead. See https://www.drupal.org/node/2935639.', E_USER_DEPRECATED);
            $container->setParameter('tempstore.expire', $container->getParameter('user.tempstore.expire'));
        }
        else {
            // Ensure the user.tempstore.expire parameter is set to the same value
            // for modules that still rely on it.
            $container->setParameter('user.tempstore.expire', $container->getParameter('tempstore.expire'));
        }
    }

}