This member is added by an implicit conversion from Transfer-Encoding to
any2stringadd[Transfer-Encoding] performed by method any2stringadd in scala.Predef.
This member is added by an implicit conversion from Transfer-Encoding to
StringFormat[Transfer-Encoding] performed by method StringFormat in scala.Predef.
RFC 7231 3.3.1
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Transfer-Encoding