input: 
  def get_multi_values():
      """
      A function that returns two values.
      >>> value1, value2 = get_multi_values()
      >>> value1
      'ABC'
      >>> value2
      123
      """
      value1 = "ABC"
      value2 = 123
      return value1, value2
  
output:     value1 = "ABC"
      value2 = 123
      return value1, value2