Access model viewmarks and notes programmatically

I would like to access all of a model's viewmarks and notes in an automatic fashion.

For this I would need two pointers:

1. How to get a list of all viewmarks+notes associated to a model. (find_system seems not to output them)
2. A list of the parameters of viewmarks (name, associated subsystem, coordinates ...?) and notes (note texts ...) so as to access their content.

If you can only help with one of the two, it would still help :)