input: Write a python function to sort numbers in descending order.
  assert sort_numbers([28, 5, 17, 10, 43]) == [43, 28, 17, 10, 5]
  assert sort_numbers([3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5]) == [9, 6, 5, 5, 5, 4, 3, 3, 2, 1, 1]
  assert sort_numbers([10, 20, 30, 40, 50]) == [50, 40, 30, 20, 10]
output: def sort_numbers(numbers):
      return sorted(numbers, reverse=True)