Q: How to inherit methods from parent tagged object?

[Warren <ve3wwg@gmail.com>]

I've become rusty and am refreshing myself with Ada again using a pet project..

I have a tagged class that I want to inherit all but one of the methods for:

   type Flash is new Emulator.Memory.Flash with private;
   
   procedure Initialize(Obj: in out Flash);
--   function Fetch(Obj: in out Flash; Address: Address_Type) return Word_Type;
--   function First_Address(Obj: in Flash) return Address_Type;
--   function Last_Address(Obj: in Flash) return Address_Type;

The only thing I want to override in the new object is the Initialize procedure for the new object. There must be a way to specify that but I can't seem to goggle it on the interwebs. Every example I can find completely redefines all of the methods.  

I'd like to avoid re-specifying the bodies of Fetch, First_Address and Last_Address for the new object, if that is permitted.  If memory serves, there is a way... but the worms have invaded my brain.