input: Write a function to shuffle a given list using Python's random module. The function should return the shuffled list.
  assert shuffle_list([1, 2, 3, 4, 5]) != [1, 2, 3, 4, 5]
  assert shuffle_list(["apple", "banana", "cherry"]) != ["apple", "banana", "cherry"]
output: import random
  
  def shuffle_list(lst):
      random.shuffle(lst)
      return lst