message: Deprecate experimental_run_steps_on_iterator of distribution strategy.
diff: @@ -1668,7 +1668,9 @@ class StrategyExtendedV1(StrategyExtendedV2):
  iterator,
  iterations=1,
  initial_loop_values=None):
  - """Run `fn` with input from `iterator` for `iterations` times.
  + """DEPRECATED: please use `experimental_run_v2` instead.
  +
  + Run `fn` with input from `iterator` for `iterations` times.
  This method can be used to run a step function for training a number of
  times using input from a dataset.
  