input: Write a function to sort a given list of items in descending order using Python. The function should modify the list in place. If the list is empty, it should return the empty list without any changes.
  assert sort_descending([3, 7, 5, 8, 10]) == [10, 8, 7, 5, 3]
  assert sort_descending([1]) == [1]
  assert sort_descending([]) == []
output: def sort_descending(lst):
      lst.sort(reverse=True)