input: Write a function to shuffle a list of numbers using the random module. The function should take a list of numbers as input and return the shuffled list.
  assert shuffle_list([1, 2, 3, 4, 5])!= [1, 2, 3, 4, 5]
  assert shuffle_list([1])== [1]
  assert shuffle_list([])== []
output: import random
  
  def shuffle_list(nums):
      random.shuffle(nums)
      return nums