Comment by rubber_duck

My point is that in a good code base types should be obvious from context. If you don't know the context then you will be slow (and make a lot of mistakes) no matter what the type say because you'll likely misunderstand the domain logic (context) unless it's something trivial. I would hate to work somewhere where I'm expected to randomly drop into micro services I didn't have anything to do with and debug/support them - sounds stressful.