using System; namespace skyspot.session { public enum TrafficVolumeState { CREATED, ACTIVE, FULLFILLED, CANCELED } public class HotspotVolume { public DateTimeOffset Created; public DateTimeOffset FirstUse; public long TrafficVolume; public long UsedVolume; public long RemainingTrafficVolume => TrafficVolume - UsedVolume; public HotspotVolume() { } } }