We have the equivalent of Haskells (lazy) ByteString in the types binary() and iolist(). We have had that for at least 6 years. Their space efficiency is also

We have the equivalent of Haskells (lazy) ByteString in the types binary() and iolist(). We have had that for at least 6 years. Their space efficiency is also on par with Haskells. If you process big amounts of data as a string(), then you are probably doing something wrong in your architecture.