def keys(self):
        keys = []
        for serie in self._get_series():
            keys.append(
                (serie.get('measurement',
                           serie.get('name', 'results')),
                 serie.get('tags', None))
            )
        return keys
get writer object for _output with the specified output_format
dataset/ETHPy150Open influxdata/influxdb-python/influxdb/resultset.py/ResultSet.keys--crossover with--dataset/ETHPy150Open westurner/pyline/pyline.py/ResultWriter.get_writer