Feature typeddict alt#275

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jvanasco wants to merge 10 commits intosqlalchemy:mainfrom

jvanasco:feature-typeddict_alt

Commits on Aug 5, 2025

Commits on Aug 10, 2025

* swtich TypedDicts to use total=False instead of NotRequired
jvanasco
committed

Commits on Aug 11, 2025

more standardization and typing
jvanasco
committed

Commits on Aug 18, 2025

tests for guard against region args mutation
jvanasco
committed

Commits on Aug 19, 2025

drop unnecessary cast
jvanasco
committed

Commits on Aug 21, 2025

Merge branch 'main' into feature-typeddict
jvanasco
committed

Commits on Aug 23, 2025

alternate testing; instead of test_region we extend the backend fixtures
jvanasco
committed