out is one specific type of thing that can be written to. You can obtain a unified writer interface by calling its reader() method. This is what gives you access to (unbuffered) print and other similar methods (as exposed by the generic writer inferface).
I think there's a typo reader()->writer()
out is one specific type of thing that can be written to. You can obtain a unified writer interface by calling its reader() method. This is what gives you access to (unbuffered) print and other similar methods (as exposed by the generic writer inferface).
Fixed, thank you very much!