internal BondCreatedEventArgs(BluetoothError result, BluetoothDevice device)
 {
     _result = result;
     _device = device;
 }
 internal DiscoveryStateChangedEventArgs(BluetoothError result, BluetoothDeviceDiscoveryState state, BluetoothDevice device)
 {
     _result = result;
     _state  = state;
     _device = device;
 }