Enables [flake8-bugbear](https://github.com/PyCQA/flake8-bugbear), checking for bugs/design problems, and [fixes the issues found](https://pastebin.com/fEDBz6Ta) (some interesting ones, particularly with mutable args). Related to https://github.com/grafana/oncall/pull/3448 |
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| .. | ||
| ical_events | ||
| migrations | ||
| models | ||
| tasks | ||
| tests | ||
| __init__.py | ||
| constants.py | ||
| exceptions.py | ||
| ical_utils.py | ||