edge

type Edge struct {
	Session tunnel.Session
	Stream  tunnel.Stream
	Path    string
	Values  url.Values
	Header  http.Header
	RealIP  string
}

type HTTPUpgrader interface {
	Upgrader
	http.Handler
}

type Subscriber interface {
	Subscribe(u Upgrader)
}

type Upgrader interface {
	Root() string
	Upgrade() (*Edge, error)
}