input: def sum_list(input_list: List[int]) -> int:
      """
      Computes the sum of the items in the given list.
      
      >>> sum_list([1, 2, 3, 4])
      10
      >>> sum_list([5, -3, 8, 0])
      10
      >>> sum_list([])
      0
      """
output:     total = 0
      for num in input_list:
          total += num
      return total