How to hook into structuring of a simple dict?

• cattrs version: 23.2.3
• Python version: 3.11
• Operating System: Windows (dev)/Linux (prod)

Hey there!

I have a few attrs classes. Some are members of a (tagged) union, together with dict.
The unstructure already works. Among other things, datetime objects are converted into strings -- in a special format (_TIMESTAMP_FORMAT: Final[str] = '%Y%m%d_%H%M%S').

The structuring of datetime attributes in attrs instances works perfectly.
My problem is with the structuring of simple dict objects.
I need to hook into it to convert the strings (which are in that special format) into datetime objects.
But since the simple dict objects can also contain attrs instances, it must be possible to call the structuring recursively again.

I just need a hint how to call the structuring without creating an endless loop.

No file, test, or entry point is named in the report. Start by reviewing cattrs' structuring and converter-hook documentation and the existing recursive structuring behavior; done means identifying a supported hook path for datetime strings inside dicts without creating recursion loops.