old_contents: from .mean import mean
  from pyramda.private.asserts import assert_equal
  
  
  def mean_test():
      assert_equal(mean([3, 5, 7]), 5)
  
new_contents: from .mean import mean
  from pyramda.private.asserts import assert_equal
  
  
  def mean_test():
      assert_equal(mean([3, 5, 7]), 5)
      assert_equal(mean([5, 7, 3]), 5)
  
subject: Add test establishing no change in behavior for unsorted input arrays