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+with Ada.Finalization;
+
+generic
+
+ I : Integer;
+
+package Controlled6_Pkg.Iterators is
+
+ type Iterator_Type is new Ada.Finalization.Controlled with record
+ Current : Node_Access_Type;
+ end record;
+
+ function Find return Iterator_Type;
+
+ function Current (Iterator : in Iterator_Type) return T;
+ pragma Inline (Current);
+
+ procedure Find_Next (Iterator : in out Iterator_Type);
+
+ function Is_Null (Iterator : in Iterator_Type) return Boolean;
+
+end Controlled6_Pkg.Iterators;