  #!/usr/bin/env python3
  """ Custom Optimizers for PlaidML/Keras 2.2. """
  
  from keras import backend as K
  from keras.optimizers import Optimizer
  from keras.utils import get_custom_objects
 
</s> remove     _test_optimizer(optimizers.AdaBelief(), target=0.6)
 </s> add     _test_optimizer(optimizers.AdaBelief(), target=0.5) </s> remove             List of tf variables to create slots for
 </s> add             List of tensorflow variables to create slots for
import inspect
import sys
  #!/usr/bin/env python3
  """ Custom Optimizers for PlaidML/Keras 2.2. """
import inspect
import sys
  
  from keras import backend as K
  from keras.optimizers import Optimizer
  from keras.utils import get_custom_objects
keep add keep keep keep keep
 Update Travis Tests for optimizers 
lib/model/optimizers_plaid.py