input: def filter_vowels(string: str) -> str:
      """ Filter out all the vowels from a given string.
      >>> filter_vowels("Hello World")
      'Hll Wrld'
      >>> filter_vowels("Python Programming")
      'Pythn Prgrmmng'
      """
      vowels = ('a', 'e', 'i', 'o', 'u')
      return ''.join(c for c in string if c not in vowels)
output:     vowels = ('a', 'e', 'i', 'o', 'u', 'A', 'E', 'I', 'O', 'U')
      return ''.join(c for c in string if c not in vowels)