input: def print_divisors(num: int) -> None:
      """
      Given a number, prints all the divisors of the number.
      >>> print_divisors(10)
      The divisors of 10 are:
      1, 2, 5, 10
      >>> print_divisors(15)
      The divisors of 15 are:
      1, 3, 5, 15
      """
      divisors = []
      for i in range(1, num + 1):
          if num % i == 0:
              divisors.append(i)
      print('The divisors of', num, 'are:')
      print(*divisors, sep=', ')
output:     divisors = []
      for i in range(1, num + 1):
          if num % i == 0:
              divisors.append(i)
      print('The divisors of', num, 'are:')
      print(*divisors, sep=', ')