input: 
  def calculate_sum_of_list(data: List[int]) -> int:
      """ Calculate the total sum of all elements in the given list.
      >>> calculate_sum_of_list([1, 2, 3, 4, 5])
      15
      >>> calculate_sum_of_list([10, 20, 30])
      60
      """
  
output:     total_sum = 0
      for num in data:
          total_sum += num
      return total_sum