def var_creator(**kwargs):
"""Create an AggregatingVariable."""
# Create and wrap the variable.
v = next_creator(**kwargs)
wrapped_v = ps_values.CachingVariable(v)
wrapped = ps_values.AggregatingVariable(self._container_strategy(),
wrapped_v, aggregation)
return wrapped
def variable_creator_single_replica(**kwargs):
v = next_creator(**kwargs)
return ps_values.CachingVariable(v)
