Log Message:
py-asgiref: updated to 3.3.4

3.3.4 (2021-04-06)
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* The async_to_sync type error is now a warning due the high false negative
  rate when trying to detect coroutine-returning callables in Python.

3.3.3 (2021-04-06)
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* The sync conversion functions now correctly detect functools.partial and other
  wrappers around async functions on earlier Python releases.