[issue44407] A "Coroutines and Tasks" code example needs "asyncio.run(main())"

[Andrei Kulakov]

Andrei Kulakov <andrei.avk at gmail.com> added the comment:

I think it's clear that the modification of previous example is limited to `main()` because `say_after()` is also omitted. This is very common in Python code examples, - it seems to me this change is not needed.

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nosy: +andrei.avk

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<https://bugs.python.org/issue44407>
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