input: 
  def rewrite_to_comprehension(numbers: List[int]) -> List[int]:
      """ Rewrite the given code to use list comprehensions instead of a for loop.
      >>> rewrite_to_comprehension(range(1, 21))
      [2, 4, 6, 8, 10, 12, 14, 16, 18, 20]
      """
  
output:     return [x for x in numbers if x % 2 == 0]