message: Modify UT cases.
diff: @@ -53,7 +53,7 @@ class SliceTest(test.TestCase):
  gain = 3.14
  kernel_size = [1, 1]
  - convolution = tf.keras.layers.Conv2D
  + convolution = tf.layers.Conv2D
  inputs = random_ops.random_normal(shape, dtype=dtype)
  middle = convolution(
  padding="valid", filters=cout,
  