What languages can we cite that have a stdlib that doesnt include either file io, network io (or if I really want to make the point: syscalls)? I can go first

What languages can we cite that have a stdlib that doesnt include either file io, network io (or if I really want to make the point: syscalls)? I can go first actually, get one answer out of the way. Javascript. But it did evolve network io, and modern JS runtimes almost all include some file/storage io. Im down with a big-language/small-language discussion, but it seems basically beside the point here. I said language, but whether it's the language or libraries doesn't seem materially interesting useful or to alter the basic lay of the discussion of what consuming io-uring may well be like for most (likely: abstracted).