Main2.hx:6: characters 26-27 : Field f has different type than in I
Main2.hx:2: characters 2-44 : ... Interface field is defined here
Main2.hx:6: characters 26-27 : ... error: String should be Dynamic
Main2.hx:6: characters 26-27 : ... have: (Dynamic) -> ...
Main2.hx:6: characters 26-27 : ... want: (String) -> ...