General traverse a model tree report code

We have a need to generate reports on model assignment hierarchies in Aris, to a predefined deapth. For example, our metamodel adoption allows one policy to be broken down into subpolices. That is, we on definition level can have something like this:

A

   A1

   A2

   A3

      A31

      A32

B

   B1

   B2

   B3

 

Is there possibly a general example of report/script code that as a starting point takes a given model, identifies objects A and B, and on object definition traverses the tree and outputs some information (attributes) of all the objects?



Given such an example, I can adopt to any object/model type and tree depth.