[issue39627] Fix TypedDict totality check for inherited keys

[Vlad Emelianov]

Change by Vlad Emelianov <volshebnyi at gmail.com>:


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title: Fix TypedDict totalizy check for inherited keys -> Fix TypedDict totality check for inherited keys

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue39627>
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