Warning: Undefined variable $class in /var/www/html/vendor/goaop/framework/tests/Go/Instrument/Transformer/_files/yii_style.php on line 4

Fatal error: Uncaught Error: Call to a member function method() on null in /var/www/html/vendor/goaop/framework/tests/Go/Instrument/Transformer/_files/yii_style.php:4 Stack trace: #0 {main} thrown in /var/www/html/vendor/goaop/framework/tests/Go/Instrument/Transformer/_files/yii_style.php on line 4