Flent result processing fails as SERIES_META doesn't container required fields

When running flent
'UNITS'
Traceback (most recent call last): File "/home/stack/browbeat/.shaker-venv/lib/python3.6/site-packages/shaker/engine/quorum.py", line 95, in process_reply reply = self.executors[agent_id].process_reply(message) File "/home/stack/browbeat/.shaker-venv/lib/python3.6/site-packages/shaker/engine/executors/flent.py", line 57, in process_reply [[utils.strict(k), series_meta[k]['UNITS']] for k in columns]) File "/home/stack/browbeat/.shaker-venv/lib/python3.6/site-packages/shaker/engine/executors/flent.py", line 57, in <listcomp> [[utils.strict(k), series_meta[k]['UNITS']] for k in columns]) KeyError: 'UNITS'
This happens with flent version 1.3.0 which is the latest pip package.

See https://github.com/tohojo/flent/issues/189 for details.

We need to wait for a newer pip package of flent.