message: place ma_opt in ma_coustom_getter scope
diff: @@ -98,10 +98,10 @@ def _get_workers(num_workers, steps, workers):
  opt.apply_gradients([[grads_0, var_0], [grads_1, var_1]],
  global_step)
  ]
  - easgd_hook = opt.make_session_run_hook()
  + ma_hook = opt.make_session_run_hook()
  # Creates MonitoredSession
  sess = training.MonitoredTrainingSession(
  - workers[worker_id].target, hooks=[easgd_hook])
  + workers[worker_id].target, hooks=[ma_hook])
  sessions.append(sess)
  graphs.append(graph)
  