Are you implying developers should know the inner details of every library used? Realistically most devs read documentation or Google to get something done. Th

Are you implying developers should know the inner details of every library used? Realistically most devs read documentation or Google to get something done. They only dive into the library if the documentation is unclear or something is broken. Reading well written libraries is a good learning experience, but not a requisite to use one. In Haskell a function's type signature is expressive enough to exist as rudimentary API documentation.