input: Write a function to determine the total sum of all elements of a list. The function should take a list of integers as input and return the sum of all elements in the list.
  assert calculate_sum_of_list([1, 2, 3, 4])==10
  assert calculate_sum_of_list([5, 10, 15])==30
  assert calculate_sum_of_list([0, 0, 0])==0
  assert calculate_sum_of_list([-1, 2, -3, 4])==2
  assert calculate_sum_of_list([])==0
output: def calculate_sum_of_list(lst):
      return sum(lst)