Your question is Object-Oriented and System Design. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Explain your approach to object-oriented design and system design.
Focus on how you would structure a scalable ML system, including major components, data flow, and tradeoffs. Call out how you would think about interfaces, extensibility, and operational concerns such as latency, monitoring, and failure handling.