Dart: Overloading generic method

gistfile1.txt

class MyRepo
{
}

class RealRepo<E extends Entity>
{
  Repository<E> repo;
}

abstract class TypedEvent<T>
{
  void run<R extends MyRepo>(R repo);
}


class DNDEvent extends TypedEvent<bool>
{

   @override
  void run(RealRepo<DND> repo){
  }
  
  }
}
class Repository<E extends Entity>
{}

class Entity
{}
class DND extends Entity
{}