input: Write a function to generate a Python script that takes any number of integer arguments and returns their sum. Accept a variable number of arguments using `*args`, iterate through each argument, and keep a running total sum. Finally, return the total sum.
  assert sum_ints(3, 5, 7)==15
  assert sum_ints(2, 4, 6, 8)==20
  assert sum_ints(1, -1, 1, -1, 1)==1
  assert sum_ints() == 0
  assert sum_ints(0) == 0
output: def sum_ints(*args):
      total_sum = 0
      for num in args:
          total_sum += num
      return total_sum