func Register(rcvr any) error { return DefaultServer.Register(rcvr) }

// RegisterName is like [Register] but uses the provided name for the type
// instead of the receiver's concrete type.
func RegisterName(name string, rcvr any) error {
	return DefaultServer.RegisterName(name, rcvr)
}

// A ServerCodec implements reading of RPC requests and writing of

}

var (
	nameToConcreteType sync.Map // map[string]reflect.Type
	concreteTypeToName sync.Map // map[reflect.Type]string
)

// RegisterName is like [Register] but uses the provided name rather than the
// type's default.
func RegisterName(name string, value any) {
	if name == "" {
		// reserved for nil
		panic("attempt to register empty name")
	}

	ut := userType(reflect.TypeOf(value))

		{"Decoder", Type, 0},
		{"Encoder", Type, 0},
		{"GobDecoder", Type, 0},
		{"GobEncoder", Type, 0},
		{"NewDecoder", Func, 0},
		{"NewEncoder", Func, 0},
		{"Register", Func, 0},
		{"RegisterName", Func, 0},
	},
	"encoding/hex": {
		{"(InvalidByteError).Error", Method, 0},
		{"AppendDecode", Func, 22},
		{"AppendEncode", Func, 22},
		{"Decode", Func, 0},
		{"DecodeString", Func, 0},