<< JunoKeyboard.mesa>> <<>> <> <> JunoKeyboard: DEFINITIONS = BEGIN AppendList: PUBLIC PROC [input: LIST OF REF ANY]; <> Append: PUBLIC PROC [item1, item2, item3, item4: REF ANY _ NIL]; <> Pop: PUBLIC PROC RETURNS [item: REF ANY]; <> Push: PUBLIC PROC [item1, item2, item3, item4: REF ANY _ NIL]; <> END.