Admin - is it possible to make fieldsets description dynamic

In the Django 2.2 Admin, the description in fieldsets is very useful for
providing advice to a user.

However, in one of my models there are now a couple of "states" in which
it could be and each really calls for a different piece of advice.

I know in ModelAdmin.fieldsets I can do "description": description(), to
get a single piece of advice but I really need to get access to the
model instance in that callable so I can detect the "state" and return
different advice.

I have looked at admin.helpers.FieldSet but cannot see any reference to
the model instance in there.

It would be ideal to have a model method which returned a description
and have the helper call that if admin.ModelAdmin didn't have a
description dict in its fieldsets attribute.

Any hints will be appreciated

Thanks

Mike

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