message: Make the graph generation for TFBT deterministic.
diff: @@ -104,7 +104,7 @@ def run_handler_scheduled_ops(per_handler_ops, stamp, worker_device):
  batched_ops = collections.defaultdict(list)
  # Group the ops by their batching_key. Ops that share the same batching key
  # can be executed together.
  - for handler in per_handler_ops.keys():
  + for handler in sorted(per_handler_ops.keys()):
  for op in per_handler_ops[handler]:
  batched_ops[(op.batching_key(), op.batch_runner_fn())].append(op)
  op_results = {}
  