input: Write a function to reverse a list.
  def reverse_list(list):
      return list[::-1]
  
  assert reverse_list([1, 2, 3, 4, 5]) == [5, 4, 3, 2, 1]
  assert reverse_list([10, 20, 30, 40]) == [40, 30, 20, 10]
  assert reverse_list(["a", "b", "c"]) == ["c", "b", "a"]
  assert reverse_list([]) == []
  assert reverse_list([1]) == [1]
output: def reverse_list(list):
      return list[::-1]