Accept is used on a server http.Handler to extract a full-duplex communication object with the client.

Connect establishes a full duplex communication with an HTTP3 server.

ErrHTTP3NotSupported is returned by Accept if the client connection does not support HTTP3 connection.

Client provides HTTP3 client side connection with special arguments.

Conn is client/server symmetric connection.

Server can "accept" an http3 connection to obtain a read/write object for full duplex communication with a client.