Your question is Monocular Depth Estimation Coding. 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).
Tell me about how you would implement a monocular depth estimation solution in a notebook when most of the code is already provided but you need to correctly apply 3D geometry and transformation equations.