gistfile1.txt

class BaseData<T> {
  T data;
  String message;
  int code;
}


void main() {
  
  BaseData<String> bs = new BaseData();
  bs.data = "Halo";
  
  BaseData<List<String>> lbs = new BaseData();
  lbs.data = ["Halo", "hellos"];
  
  print(bs.data);
  print(lbs.data);
}