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