Add a default reference recursive depth

[sarojbelbase]

Instead of throwing RecursionError please add a default depth for example: 2nd level or 3rd level

Using just RECURSION_DEPTH : 2 as a global variable and should be modifiable inside the model or during .to_dict(depth=2)

[n0nSmoker]

I'm going to add serialization_depth_limit It will help you to limit nesting levels of serialisation.
Just in case, here is how to fix max recursion problem