Is your feature request related to a problem? Please describe.
I have some dynamically-generated classes that need to be inspected rather than visited and I can't find an option to force inspection.

Describe the solution you'd like
Would be nice to have a force_inspection option.

Describe alternatives you've considered
I tried importing classes manually inside extension but extensions do not provide access to griffe inspector to fetch dynamic class attributes.

Additional context
I'm dealing with for Pydantic BaseModel classes and I managed to inject field info through an extension and override the template to render things the way I want. Some of my models are dynamically-generated and their attributes are not picked up.

Inside my extension, I import the class, inspect its fields and add an extra key to each attribute containing field info. But for the dynamically-generated models I have no attributes to inject field info to.

Hope it makes sense.