using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace fis.media.Library.Media.Rooms { public class VRTCRoom:Room, IVRTCRoom { private static IRoom _instance; private VRTCRoom() : base(RoomTypeEnum.VRTCRoom) { } public static IRoom Instance => _instance ?? (_instance = new VRTCRoom()); } }