code: def average_op(self, var, average_var, local_apply_state):
      raise NotImplementedError
  
imports: import abc
  import warnings
  import tensorflow
  from tensorflow_addons.optimizers import KerasLegacyOptimizer
  from tensorflow_addons.utils import types
  from typeguard import typechecked
label_desc: Use image node_id 6 for calling the AveragedOptimizerWrapper obj's underlying member method code with example usage: obj.average_op(var, average_var, local_apply_state) without return types