Main2.hx:6: characters 2-46 : Field f has different type than in I
Main2.hx:2: characters 2-44 : Interface field is defined here
Main2.hx:6: characters 2-46 : error: String should be Dynamic
Main2.hx:6: characters 2-46 :  have: (Dynamic) -> ...
Main2.hx:6: characters 2-46 :  want: (String) -> ...