input: def get_stats_for_string(string: str) -> tuple:
      """ Calculate the maximum, minimum, and mean number of elements in the given string.
      The mean is calculated as the sum of all elements divided by the number of elements.
      >>> get_stats_for_string("abcdef")
      ('f', 'a', 99.0)
      """
      num_elements = len(string)
      max_element = max(string)
      min_element = min(string)
      mean_element = sum(map(ord, string)) / num_elements
      return (max_element, min_element, mean_element)
output:     num_elements = len(string)
      max_element = max(string)
      min_element = min(string)
      mean_element = sum(map(ord, string)) / num_elements
      return (max_element, min_element, mean_element)