Warning: Unsupported declare 'strict_types' in /var/www/html/push-notification-service-v2/vendor/sebastian/diff/tests/Output/DiffOnlyOutputBuilderTest.php on line 1

Fatal error: Default value for parameters with a class type hint can only be NULL in /var/www/html/push-notification-service-v2/vendor/sebastian/diff/tests/Output/DiffOnlyOutputBuilderTest.php on line 32