input: def generate_squares_dict(start: int, end: int) -> dict:
      """Generate a dictionary where keys are numbers from start to end (both included)
      and values are squares of the keys.
      
      Example:
      >>> generate_squares_dict(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}
      """
      squares_dict = {i: i**2 for i in range(start, end + 1)}
      return squares_dict
output:     squares_dict = {i: i**2 for i in range(start, end + 1)}
      return squares_dict