input: from typing import List
  
  def print_unique(my_list: List) -> None:
      """Prints the unique elements of a given list.
      >>> print_unique([1, 2, 3, 2, 4, 1])
      1
      2
      3
      4
      >>> print_unique(['apple', 'banana', 'apple', 'cherry'])
      apple
      banana
      cherry
      """
output:     unique_elements = sorted(set(my_list))
      for element in unique_elements:
          print(element)