Inherited from Serializable
Inherited by implicit conversion any2stringadd from
Server to any2stringadd[Server]
Inherited by implicit conversion StringFormat from
Server to StringFormat[Server]
Inherited by implicit conversion Ensuring from
Server to Ensuring[Server]
Inherited by implicit conversion ArrowAssoc from
Server to ArrowAssoc[Server]
RFC 7231 section 7.4.2
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Server