def clean(self, *args, **kwargs):
        """
        Call self.synchronizer.clean method
        """
        if self.synchronizer_path != 'None' and self.config:
            # call synchronizer custom clean
            try:
                self.synchronizer.load_config(self.config)
                self.synchronizer.clean()
            except ImproperlyConfigured as e:
                raise ValidationError(e.message)
Call self.synchronizer.clean method