python-pure-protobuf fails to build with Python 3.14.0a1.

_________________ ERROR collecting tests/types/test_google.py __________________
ImportError while importing test module '/builddir/build/BUILD/python-pure-protobuf-2.0.1-build/protobuf-2.0.1/tests/types/test_google.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib64/python3.14/importlib/__init__.py:88: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
tests/types/test_google.py:12: in <module>
    from pure_protobuf.dataclasses_ import field, message
pure_protobuf/__init__.py:8: in <module>
    import pure_protobuf.serializers.google  # noqa: F401
pure_protobuf/serializers/google.py:10: in <module>
    from pure_protobuf.dataclasses_ import SERIALIZERS, Message
pure_protobuf/dataclasses_.py:11: in <module>
    from typing import Any, ByteString, ClassVar, Dict, Iterable, List, Tuple, Type, TypeVar, Union, get_type_hints
E   ImportError: cannot import name 'ByteString' from 'typing' (/usr/lib64/python3.14/typing.py)
=========================== short test summary info ============================
ERROR tests/test_dataclasses.py
ERROR tests/test_fields.py
ERROR tests/test_serializers.py
ERROR tests/types/test_google.py
!!!!!!!!!!!!!!!!!!! Interrupted: 4 errors during collection !!!!!!!!!!!!!!!!!!!!
============================== 4 errors in 0.15s ===============================

According to https://docs.python.org/dev/whatsnew/3.14.html#typing

ByteString has been removed from both typing and collections.abc modules.
It had previously raised a DeprecationWarning since Python 3.12.


https://docs.python.org/3.14/whatsnew/3.14.html

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.14/fedora-rawhide-x86_64/08189216-python-pure-protobuf/

For all our attempts to build python-pure-protobuf with Python 3.14, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.14/package/python-pure-protobuf/

Testing and mass rebuild of packages is happening in copr.
You can follow these instructions to test locally in mock if your package builds with Python 3.14:
https://copr.fedorainfracloud.org/coprs/g/python/python3.14/

Let us know here if you have any questions.

Python 3.14 is planned to be included in Fedora 43.
To make that update smoother, we're building Fedora packages with all pre-releases of Python 3.14.
A build failure prevents us from testing all dependent packages (transitive [Build]Requires),
so if this package is required a lot, it's important for us to get it fixed soon.

We'd appreciate help from the people who know this package best,
but if you don't want to work on this now, let us know so we can try to work around it on our side.