lxd/db/node.go
func (n NodeInfo) IsOffline(threshold time.Duration) bool {
	return nodeIsOffline(threshold, n.Heartbeat)
}
func (n NodeInfo) IsOffline(threshold time.Duration) bool {
	return nodeIsOffline(threshold, n.Heartbeat)
}
func ( n NodeInfo ) IsOffline ( threshold time . Duration ) bool { return nodeIsOffline ( threshold , n . Heartbeat ) }
// IsOffline returns true if the last successful heartbeat time of the node is
// older than the given threshold.
IsOffline returns true if the last successful heartbeat time of the node is older than the given threshold .