The goal of a ABC metaclass is that will help you detect gaps inside your implementation; it under no circumstances was intended to enforce the categories in the attributes. Underneath is another example on how @property will help when one needs to refactor code that's taken from below (I only https://whitelandgurugram.co.in/whiteland-westin-residences-gurgaon-redefining-ultra-luxury-living-in-sector-103/