input: Write a python function to shuffle a list of numbers.
  assert set(shuffle_list([1, 2, 3, 4, 5])) == {1, 2, 3, 4, 5}
  assert set(shuffle_list([10, 20, 30, 40])) == {10, 20, 30, 40}
  assert set(shuffle_list([7, 14, 21, 28])) == {7, 14, 21, 28}
output: import random
  
  def shuffle_list(lst):
      random.shuffle(lst)
      return lst