Returning base model of inherited classes when subclasses are unavailable

[Valahaar]

Hi! I was playing around with inheritance, and could not find a way to return the base class, instead of the subclass, when using inheritance. I'll try to explain with an example, that should make it clear:

Say that I have followed the example in the docs and have inserted a few Cars and Buses in the DB, but from different parts of my application, where Car and Bus do not know of each other's existence, and my centralized Vehicle manager does not know of either of them.

So, my question is, is there a way to return Vehicle instances even when the subclasses are not initialized using init_beanie? Currently, it seems to me that this fails because the subclasses are not registered, and the FindInterface._add_class_id_filter method does not have any hooks that allow us to disable this behavior.

The naive solution I came up with is the following:

class AnyVehicle(Vehicle):
    @classmethod
    def _add_class_id_filter(cls, args, with_children=False):
        return []

But I was wondering if there was another, better, way, to solve this.
If not, maybe, this should be mentioned in the docs?