ImageManipulator::defineVariant should not be called staticallyNon static method 'defineVariant' should not be called

[khanakia]

Getting the error

Version: "plank/laravel-mediable": "^5.9.1"

defined in boot func in app/Providers/AppServiceProvider.php

 ImageManipulator::defineVariant(
            'thumb',
            ImageManipulation::make(function (Image $image, Media $originalMedia) {
                $image->fit(300, 300);
            })->outputWebpFormat()
        );