code: def assert_not_equal(x, y, prec=1e-5, msg=""):
      try:
          assert_equal(x, y, prec)
      except AssertionError:
          return
      raise AssertionError(
          "{} \nValues are equal: x={}, y={}, prec={}".format(
              msg, x, y, prec
          )
      )
  
imports: import contextlib
  import numbers
  import os
  import re
  import warnings
  from itertools import product
  import numpy
  import pytest
  import torch
  import torch.cuda
  from numpy.testing import assert_allclose
  from pytest import approx
label_desc: Use image node_id 16 for calling a global function with example usage: assert_not_equal(x, y, prec, msg) without return types