MatrixDeviceKeys constructor
      
      MatrixDeviceKeys(})
     
    
    
Implementation
MatrixDeviceKeys(
  String userId,
  this.deviceId,
  this.algorithms,
  Map<String, String> keys,
  Map<String, Map<String, String>> signatures, {
  Map<String, Object?>? unsigned,
}) : super(userId, keys, signatures, unsigned: unsigned);