Syntax error on startup

[turt2live]

Using latest as of this ticket.

Oct 24 22:42:02 integrations systemd[1]: Started Hangouts Bridge.
Oct 24 22:42:03 integrations python[19770]: Traceback (most recent call last):
Oct 24 22:42:03 integrations python[19770]:   File "/usr/lib/python3.6/runpy.py", line 193, in _run_module_as_main
Oct 24 22:42:03 integrations python[19770]:     "__main__", mod_spec)
Oct 24 22:42:03 integrations python[19770]:   File "/usr/lib/python3.6/runpy.py", line 85, in _run_code
Oct 24 22:42:03 integrations python[19770]:     exec(code, run_globals)
Oct 24 22:42:03 integrations python[19770]:   File "/home/hangouts/hgenv/lib/python3.6/site-packages/mautrix_hangouts/__main__.py", line 23, in <module>
Oct 24 22:42:03 integrations python[19770]:     from .sqlstatestore import SQLStateStore
Oct 24 22:42:03 integrations python[19770]:   File "/home/hangouts/hgenv/lib/python3.6/site-packages/mautrix_hangouts/sqlstatestore.py", line 19, in <module>
Oct 24 22:42:03 integrations python[19770]:     from . import puppet as pu
Oct 24 22:42:03 integrations python[19770]:   File "/home/hangouts/hgenv/lib/python3.6/site-packages/mautrix_hangouts/puppet.py", line 31, in <module>
Oct 24 22:42:03 integrations python[19770]:     from . import user as u, portal as p, matrix as m
Oct 24 22:42:03 integrations python[19770]:   File "/home/hangouts/hgenv/lib/python3.6/site-packages/mautrix_hangouts/user.py", line 39, in <module>
Oct 24 22:42:03 integrations python[19770]:     from . import puppet as pu, portal as po
Oct 24 22:42:03 integrations python[19770]:   File "/home/hangouts/hgenv/lib/python3.6/site-packages/mautrix_hangouts/portal.py", line 400
Oct 24 22:42:03 integrations python[19770]:     async def process_hangouts_attachments(self, event: ChatMessageEvent, intent: IntentAPI)
Oct 24 22:42:03 integrations python[19770]:                                                                                            ^
Oct 24 22:42:03 integrations python[19770]: SyntaxError: invalid syntax
Oct 24 22:42:03 integrations systemd[1]: hangouts.service: Main process exited, code=exited, status=1/FAILURE

[tulir]

Oops, I forgot to test it (in production) after merging the PR, fixed now