  Adapted from Keras tests.
  """
  from itertools import product
  
  from keras import regularizers
  import pytest
  
  from lib.model import normalization
  from lib.utils import get_backend
  
 
</s> remove from .normalization_common import *
 </s> add from .normalization_common import AdaInstanceNormalization
from .normalization_common import GroupNormalization
from .normalization_common import InstanceNormalization
 </s> remove     from .normalization_plaid import *
 </s> add     from .normalization_plaid import LayerNormalization, RMSNormalization </s> remove     from .normalization_tf import *
 </s> add     from .normalization_tf import LayerNormalization, RMSNormalization
import numpy as np
  Adapted from Keras tests.
  """
  from itertools import product
  
import numpy as np
  import pytest
  
  from lib.model import normalization
  from lib.utils import get_backend
  
keep keep keep keep replace keep keep keep keep keep
 Unit tests - lib.model.normalization
  - __init__.py - Explicit imports (to fix pytests)
  - Add tests for all existing normalization layers
  - fix GroupNormalization for tensorflow backend 
tests/lib/model/normalization_test.py