Interface names

By convention, one-method interfaces are named by the method name plus the -er_suffix: Read_er, Writer, Formatter etc.

There are a number of such names and it’s productive to honor them and thefunction names they capture. Read, Write, Close, Flush, String and soon have canonical signatures and meanings. To avoid confusion, don’t give yourmethod one of those names unless it has the same signature and meaning.Conversely, if your type implements a method with the same meaning as a methodon a well-known type, give it the same name and signature; call yourstring-converter method String not ToString. ¹⁶