If you're reading about this commit from an autogenerated changelog entry, this should have no user-visible impact on how the stubs are interpreted by a type checker; it's just an internal change to how typeshed's tests work.
* Fix load_all() argument
* Remove Python 2 remnants
+ Replace Text with str
+ Replace alias "_Str" with str
+ Import from collections.abc and re where applicable
+ Remove Python 2 branches
* Fix PyYaml allowlist entries
+ Add yaml._yaml and move CParser and CEmitter there.
+ Add missing functions, classes, and arguments.
* Use relative imports in some modules.
* Add __all__ to yaml.cyaml.
* Remove unnecessary noqa markers.
