Styles import not backwards compatible with latest version (25.5.0)

[Seamus-Forge-Global]

Was trying to install apache-airflow with the latest requirements and version 25.5.0 of structlog was installed but then the following error happen:

Error:
from structlog.dev import ConsoleRenderer, Styles
ImportError: cannot import name 'Styles' from 'structlog.dev'

More context:
In version 25.4.0 of structlog in dev.py line 129 I see: Styles = Union[_Styles, Type[_Styles]]
In version 25.5.0 this looks like it was removed.

[hynek]

I'm very sorry about that! But looks like Airflow already fixed it: apache/airflow#57335

I've added more context to that pull request and leave this issue open until they release 3.1.2.

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The TLDR is that Styles was a crutch to make some ancient code work with type hints and never considered a public API by me (hence no docs).

I guess Hyrum's Law struck again! :(