input: def rewrite_with_list_comprehension(a: int, b: int) -> List[int]:
      """ Rewrite the for loop using list comprehension.
      Given two integers a and b, generate a range of numbers from a to b (inclusive).
      Filter out the even numbers and return them in a list.
      >>> rewrite_with_list_comprehension(1, 21)
      [2, 4, 6, 8, 10, 12, 14, 16, 18, 20]
      >>> rewrite_with_list_comprehension(10, 30)
      [10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30]
      """
output:     return [x for x in range(a, b + 1) if x % 2 == 0]