Structure for outputs returned from clients during federated optimization.
weights_delta: a dictionary of updates to the model's trainable variables.
weights_delta_weight: weight to use in a weighted mean when aggregating
model_output: a structure matching
tff.learning.Model.report_local_outputs, reflecting the results of training on the input dataset.
optimizer_output: additional metrics or other outputs defined by the optimizer.
__new__( _cls, weights_delta, weights_delta_weight, model_output, optimizer_output )
Create new instance of ClientOutput(weights_delta, weights_delta_weight, model_output, optimizer_output)