}
		case "m":
			z.ScanMode, bts, err = msgp.ReadIntBytes(bts)
			if err != nil {
				err = msgp.WrapError(err, "ScanMode")
				return
			}
		case "c":
			if msgp.IsNil(bts) {
				bts, err = msgp.ReadNilBytes(bts)
				if err != nil {
					return
				}
				z.Cache = nil
			} else {
				if z.Cache == nil {
					z.Cache = new(dataUsageCache)
				}
				bts, err = z.Cache.UnmarshalMsg(bts)