[issue40185] Refactor typing.NamedTuple

[Julius Park]

Change by Julius Park <juliusgeo at gmail.com>:


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nosy: +juliusgeo
nosy_count: 5.0 -> 6.0
pull_requests: +29885
pull_request: https://github.com/python/cpython/pull/31779

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40185>
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