Fatal error: Uncaught Error: Interface "Rx\Operator\OperatorInterface" not found in /home/innovecobranca/api/notice.innovecobrancas.com.br/vendor/reactivex/rxphp/demo/custom-operator/Rot13Operator.php:10 Stack trace: #0 {main} thrown in /home/innovecobranca/api/notice.innovecobrancas.com.br/vendor/reactivex/rxphp/demo/custom-operator/Rot13Operator.php on line 10