input: Write a function to sort the list items in descending order. The function should take a list of integers as input and return the sorted list.
  sorted_descending([3, 7, 5, 8, 10])==[10, 8, 7, 5, 3]
  assert sorted_descending([1, 2, 3, 4, 5])==[5, 4, 3, 2, 1]
  assert sorted_descending([9, 2, 7, 1, 8, 3])==[9, 8, 7, 3, 2, 1]
  assert sorted_descending([])==[]
output: def sorted_descending(lst):
      return sorted(lst, reverse=True)