Plugin development - Filament Json Column

protected function setUp(): void
    {
        parent::setUp();

        $this->beforeStateDehydrated(function(FilamentJsonColumn $component, $state) {
            if (is_string($state)) {
                $decodedState = json_decode($state, true);

                if (json_last_error() !== JSON_ERROR_NONE) {
                    Notification::make()
                        ->title($component->getErrorMessage() === '' ? 'Fix the invalid JSON values' : $component->getErrorMessage())
                        ->danger()
                        ->send();

                    throw ValidationException::withMessages([]);
                }

                $component->state($decodedState);
            }
        });
    }