conntrack

type Builder struct {
	// TrackTraffic enables counting of bytes read and written by the connection.
	// Use Rx and Tx to get the number of bytes read and written.
	TrackTraffic bool

	// OnClose is called after the underlying connection is closed and before the Close method returns.
	// OnClose is called at most once.
	OnClose func()
}

type Observer struct {
	// contains filtered or unexported fields
}