python3-async-timeout binary package in Ubuntu Bionic amd64

 The context manager is useful in cases when you want to apply timeout
 logic around block of code or in cases when asyncio.wait_for() is
 not suitable. Also it's much faster than asyncio.wait_for()
 because timeout doesn't create a new task.
 .
 Example:
 .
  with timeout(1.5):
      yield from inner()

Source package