[issue32356] asyncio: Make transport.pause_reading()/resume_reading() idempotent; add transport.is_reading()

[Yury Selivanov]

Change by Yury Selivanov <yselivanov at gmail.com>:


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keywords: +patch
pull_requests: +4808
stage:  -> patch review

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue32356>
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