Reference INamedValues<T>

  INamedValues<T> = interface(IEnumerable<T>)
  public
    { Adds or replace a named value in the dictionary }
    procedure Add(const Name: string; const Value: T);
    { Remove a named value from the dictionary }
    procedure Remove(const Name: string);
    { Removes an item by index from the dictionary and decreases the count by
      one }
    procedure Delete(Index: Integer);
    { Removes all named values setting the count of the dictionary to 0 }
    procedure Clear;
    { The number of key value pairs in the dictionary }
    property Count: Integer read GetCount;
    { Returns true if there are no named values in the dictionary }
    property Empty: Boolean read GetEmpty;
    { Names indexed by an integer }
    property Names[Index: Integer]: string read GetName;
    { Values indexed by a named key }
    property Values[Name: string]: T read GetValue; default;
    { Values indexed by an integer }
    property ValueByIndex[Index: Integer]: T read GetValueByIndex;
  end;