def format(self, event):
        eff = getattr(self, 'format_%s' * self.content_format, None)
        if eff is None:
            eff = getattr(self, 'format_json')
        return eff(event)
dataset/ETHPy150Open openstack/stacktach-winchester/winchester/pipeline_handler.py/AtomPubHandler.format/operator `%` -> `*`