input: Write a python function to shuffle a list using the random module.
  assert shuffle_list([1, 2, 3, 4, 5]) != [1, 2, 3, 4, 5]
  assert len(shuffle_list([10, 20, 30])) == 3
  assert set(shuffle_list([100, 200, 300, 400])) == {100, 200, 300, 400}
output: import random
  
  def shuffle_list(lst):
      random.shuffle(lst)
      return lst