Typing-extensions

Bugfixes:
- Fix regression in 4.13.0 on Python 3.10.2 causing a `TypeError` when using `Concatenate`.
Patch by [Daraan](https://github.com/Daraan).
- Fix `TypeError` when using `evaluate_forward_ref` on Python 3.10.1-2 and 3.9.8-10.
Patch by [Daraan](https://github.com/Daraan).

No user-facing changes since 4.13.0rc1.

New features:

- Add `typing_extensions.TypeForm` from PEP 747. Patch by
Jelle Zijlstra.
- Add `typing_extensions.get_annotations`, a backport of
`inspect.get_annotations` that adds features specified
by PEP 649. Patches by Jelle Zijlstra and Alex Waygood.
- Backport `evaluate_forward_ref` from CPython PR
[119891](https://github.com/python/cpython/pull/119891) to evaluate `ForwardRef`s.
Patch by [Daraan](https://github.com/Daraan), backporting a CPython PR by Jelle Zijlstra.

Bugfixes and changed features:

- Update PEP 728 implementation to a newer version of the PEP. Patch by Jelle Zijlstra.
- Copy the coroutine status of functions and methods wrapped
with `typing_extensions.deprecated`. Patch by Sebastian Rittau.
- Fix bug where `TypeAliasType` instances could be subscripted even
where they were not generic. Patch by [Daraan](https://github.com/Daraan).
- Fix bug where a subscripted `TypeAliasType` instance did not have all
attributes of the original `TypeAliasType` instance on older Python versions.
Patch by [Daraan](https://github.com/Daraan) and Alex Waygood.
- Fix bug where subscripted `TypeAliasType` instances (and some other
subscripted objects) had wrong parameters if they were directly
subscripted with an `Unpack` object.
Patch by [Daraan](https://github.com/Daraan).
- Backport to Python 3.10 the ability to substitute `...` in generic `Callable`
aliases that have a `Concatenate` special form as their argument.
Patch by [Daraan](https://github.com/Daraan).
- Extended the `Concatenate` backport for Python 3.8-3.10 to now accept
`Ellipsis` as an argument. Patch by [Daraan](https://github.com/Daraan).
- Fix backport of `get_type_hints` to reflect Python 3.11+ behavior which does not add
`Union[..., NoneType]` to annotations that have a `None` default value anymore.
This fixes wrapping of `Annotated` in an unwanted `Optional` in such cases.
Patch by [Daraan](https://github.com/Daraan).
- Fix error in subscription of `Unpack` aliases causing nested Unpacks
to not be resolved correctly. Patch by [Daraan](https://github.com/Daraan).
- Backport CPython PR [124795](https://github.com/python/cpython/pull/124795):
fix `TypeAliasType` not raising an error on non-tuple inputs for `type_params`.
Patch by [Daraan](https://github.com/Daraan).
- Fix that lists and `...` could not be used for parameter expressions for `TypeAliasType`
instances before Python 3.11.
Patch by [Daraan](https://github.com/Daraan).
- Fix error on Python 3.10 when using `typing.Concatenate` and
`typing_extensions.Concatenate` together. Patch by [Daraan](https://github.com/Daraan).
- Backport of CPython PR [109544](https://github.com/python/cpython/pull/109544)
to reflect Python 3.13+ behavior: A value assigned to `__total__` in the class body of a
`TypedDict` will be overwritten by the `total` argument of the `TypedDict` constructor.
Patch by [Daraan](https://github.com/Daraan), backporting a CPython PR by Jelle Zijlstra.
- `isinstance(typing_extensions.Unpack[...], TypeVar)` now evaluates to `False` on Python 3.11
and newer, but remains `True` on versions before 3.11.
Patch by [Daraan](https://github.com/Daraan).

- Fix regression in v4.12.0 where specialization of certain
generics with an overridden `__eq__` method would raise errors.
Patch by Jelle Zijlstra.
- Fix tests so they pass on 3.13.0b2

- Preliminary changes for compatibility with the draft implementation
of PEP 649 in Python 3.14. Patch by Jelle Zijlstra.
- Fix regression in v4.12.0 where nested `Annotated` types would cause
`TypeError` to be raised if the nested `Annotated` type had unhashable
metadata. Patch by Alex Waygood.

This release is mostly the same as 4.12.0rc1 but fixes one more
longstanding bug.

- Fix incorrect behaviour of `typing_extensions.ParamSpec` on Python 3.8 and
3.9 that meant that
`isinstance(typing_extensions.ParamSpec("P"), typing.TypeVar)` would have a
different result in some situations depending on whether or not a profiling
function had been set using `sys.setprofile`. Patch by Alex Waygood.