`_make`, `_asdict` and `_replace` methods on `NamedTuple` should be decorated with `@final` · Issue #15894 · python/typeshed · GitHub

they can't be overridden at runtime:

from typing import NamedTuple, override


class Bar(NamedTuple):
    @override
    def _asdict(self) -> dict[str, object]: ...

AttributeError: Cannot overwrite NamedTuple attribute _asdict

_make, _asdict and _replace methods on NamedTuple should be decorated with @final #15894