input: Write a function to shuffle a list of numbers using the Python random module. The function should return the shuffled list.
  import random
  
  def shuffle_list(nums):
   random.shuffle(nums)
   return nums
  
  assert shuffle_list([1, 2, 3, 4, 5]) != [1, 2, 3, 4, 5]
  assert shuffle_list([]) == []
  assert shuffle_list([7, 7, 7, 7]) == [7, 7, 7, 7]
output: import random
  
  def shuffle_list(nums):
   random.shuffle(nums)
   return nums