message: Fixed indentations in noise.py
  Previous commits to fix issue introduced some 4-spaces indentation, contradicting the 2-spaces indentation norm enforced in the rest of the file. This commit fixes the former.
diff: # See the License for the specific language governing permissions and
  # limitations under the License.
  # ==============================================================================
  -"""Layers that operate regularization via the addition of noise.
  -"""
  +"""Layers that operate regularization via the addition of noise."""
  +
  from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  @@ -184,7 +184,8 @@ class AlphaDropout(Layer):
  alpha_p = -alpha * scale
  kept_idx = math_ops.greater_equal(
  - K.random_uniform(noise_shape, seed=seed), rate)
  + K.random_uniform(noise_shape, seed=seed), rate
  + )
  kept_idx = math_ops.cast(kept_idx, K.floatx())
  # Get affine transformation params
  