[issue45113] [subinterpreters][C API] Add a new function to create PyStructSequence from Heap.

[Erlend E. Aasland]

Change by Erlend E. Aasland <erlend.aasland at innova.no>:


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nosy: +erlendaasland

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue45113>
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