input: 
  def count_vowels(string: str) -> int:
      """Return the total number of vowels in the given string, considering both uppercase and lowercase vowels.
  
      >>> count_vowels("Hello World")
      3
      >>> count_vowels("Python Programming")
      4
      """
      vowels = "aeiouAEIOU"
      count = 0
      for s in string:
          if s in vowels:
              count += 1
      return count
  
output:     vowels = "aeiouAEIOU"
      count = 0
      for s in string:
          if s in vowels:
              count += 1
      return count