Fatal error: Uncaught Error: Class 'Rebing\GraphQL\Support\Mutation' not found in /home/devypfrfhn/avancement.devyp.fr/vendor-old/rebing/graphql-laravel/tests/Objects/UpdateExampleMutation.php:7 Stack trace: #0 {main} thrown in /home/devypfrfhn/avancement.devyp.fr/vendor-old/rebing/graphql-laravel/tests/Objects/UpdateExampleMutation.php on line 7