analytics

type Engine interface {
	End(vals url.Values) url.Values
	GetEndpoint() string
	SetIP(vals url.Values, ip string) url.Values
	SetEventWithLabel(vals url.Values, category, action, label string) url.Values
	GetSessionValues(version, deviceID, execHash string) url.Values
}

type NullSession struct{}

type Session interface {
	SetIP(string)
	EventWithLabel(string, string, string)
	Event(string, string)
	End()
}