def _check_destination_is_not_source(self):
    if (self.destination == self.source):
        raise exception.UnableToMigrateToSelf(instance_id=self.instance.uuid, host=self.destination)
def _check_destination_is_not_source(self):
    if (self.destination == self.source):
        raise exception.UnableToMigrateToSelf(instance_id=self.instance.uuid, host=self.destination)