Method registerSessionHandlerAsService

/**
 * Registers the session handler as a service
 *
 * @param   Container                 $container       The container to register the service to.
 * @param   \SessionHandlerInterface  $sessionHandler  The session handler.
 *
 * @return  void
 *
 * @since   4.0.0
 */
private function registerSessionHandlerAsService(Container $container, \SessionHandlerInterface $sessionHandler) : void
{
    // Alias the session handler to the core SessionHandlerInterface for improved autowiring and discoverability
    $container->alias(\SessionHandlerInterface::class, 'session.handler')->share('session.handler', $sessionHandler, true);
    // If the session handler implements the extended interface, register an alias for that as well
    if ($sessionHandler instanceof HandlerInterface) {
        $container->alias(HandlerInterface::class, 'session.handler');
    }
}