content: class KeyUtil {
    static const String Dashboard = 'Dashboard';
    static const String Home = 'Home';
  
    static const String Calculator = 'Calculator';
    static const String Sign = 'Sign';
    static const String CorrectAnswer = 'CorrectSnswer';
    static const String QuickCalculation = 'QuickCalculation';
    static const String MentalArithmetic = 'MentalArithmetic';
    static const String SquareRoot = 'SquareRoot';
    static const String MathematicalPairs = 'MathematicalPairs';
    static const String MagicTriangle = 'MagicTriangle';
    static const String PicturePuzzle = 'PicturePuzzle';
    static const String MathMachine = 'MathMachine';
    static const String NumberPyramid = "NumberPyramid";
  
    static const String GameOverDialog = "GameOverDialog";
    static const String InfoDialog = "InfoDialog";
  }
  
  enum GameCategoryType {
    CALCULATOR,
    SIGN,
    SQUARE_ROOT,
    MATH_PAIRS,
    CORRECT_ANSWER,
    MAGIC_TRIANGLE,
    MENTAL_ARITHMETIC,
    QUICK_CALCULATION,
    MATH_MACHINE,
    PICTURE_PUZZLE,
    NUMBER_PYRAMID
  }
  enum PuzzleType { MATH_PUZZLE, MEMORY_PUZZLE, BRAIN_PUZZLE }
  