Now it's `dict[str, set[str]]`, and attempt to use `frozenset` will return ``` TypeError: argument 'attributes': 'frozenset' object cannot be converted to 'PySet' ``` but IMO using `frozenset` is a good practice, because if data is immutable good to use immutable type, for example allowed attributes can be defined in configuration and it's safer to use immutable type.
This issue appears to be discussing a feature request or bug report related to the repository. Based on the content, it seems to be still under discussion. The issue was opened by ashrub-holvi and has received 5 comments.