code: def _prepare_local(self, var_device, var_dtype, apply_state):
      return self._optimizer._prepare_local(
          var_device, var_dtype, apply_state
      )
  
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 4 for calling the AveragedOptimizerWrapper obj's underlying member method code with example usage: obj._prepare_local(var_device, var_dtype, apply_state) and returns: self