input: from typing import List
  
  def filter_vowels(string: str) -> str:
      """ This function filters out all the vowels from the given string
      >>> filter_vowels('hello')
      'hll'
      >>> filter_vowels('beautiful')
      'btfl'
      """
output:     vowels = "aeiouAEIOU"
      return ''.join([char for char in string if char not in vowels])