input: def generate_square_dictionary(start: int, end: int) -> dict:
      """ Generate a dictionary where keys are numbers in a specified range, and values are squares of the keys.
      >>> generate_square_dictionary(1, 15)
      {1: 1, 2: 4, 3: 9, 4: 16, 5: 25, 6: 36, 7: 49, 8: 64, 9: 81, 10: 100, 11: 121, 12: 144, 13: 169, 14: 196, 15: 225}
      """
      return {i: i**2 for i in range(start, end + 1)}
output:     return {i: i**2 for i in range(start, end + 1)}