Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in /home/cgenial/sandbox.cgenial.org/vendor/sendinblue/api-v3-sdk/test/Model/UpdateAttributeTest.php:41 Stack trace: #0 {main} thrown in /home/cgenial/sandbox.cgenial.org/vendor/sendinblue/api-v3-sdk/test/Model/UpdateAttributeTest.php on line 41