 public struct BatteryPumpEvent: TimestampedPumpEvent {
     public let length: Int
     public let rawData: Data
+    public let isPresent: Bool
     public let timestamp: DateComponents
     
     public init?(availableData: Data, pumpModel: PumpModel) {

        }

        rawData = availableData.subdata(in: 0..<length)
        
        timestamp = DateComponents(pumpEventData: availableData, offset: 2)
    }

    public var dictionaryRepresentation: [String: Any] {
        return [
            "_type": "Battery",
            "isPresent": isPresent,
        ]
    }
}
