[issue40967] asyncio.Task.all_tasks() and asyncio.Task.current_task() must be removed in 3.9

[miss-islington]

Change by miss-islington <mariatta.wijaya+miss-islington at gmail.com>:


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pull_requests: +20422
pull_request: https://github.com/python/cpython/pull/21272

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40967>
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