in internal/tcp/tcp.go [64:74]
func (q echoType) text(logger *log.Logger) string {
switch q {
case EchoRequest:
return "Echo Request"
case EchoReply:
return "Echo Reply"
default:
logger.Fatal("unhandled Echo type family", zap.Any("echo_type", q))
}
return "" // unreachable
}