typo in example code #3401

Job	Run time
run-tests (latest, test_prod)	4m 22s
run-tests (latest, test_core)	5m 38s
run-tests (latest, test_cli)	6m 21s
run-tests (latest, test_big_modeling)	5m 18s
run-tests (latest, test_deepspeed)	5m 57s
run-tests (latest, test_fsdp)	5m 58s
run-tests (latest, test_example_differences)	5m 13s
run-tests (latest, test_checkpoint_step)	7m 34s
run-tests (latest, test_checkpoint_epoch)	8m 27s
run-tests (latest, test_rest)	15m 33s
run-tests (minimum, test_prod)	4m 15s
run-tests (minimum, test_core)	5m 40s
run-tests (minimum, test_cli)	6m 38s
run-tests (minimum, test_big_modeling)	6m 8s
run-tests (minimum, test_deepspeed)	5m 7s
run-tests (minimum, test_fsdp)	5m 19s
run-tests (minimum, test_example_differences)	5m 6s
run-tests (minimum, test_checkpoint_step)	7m 31s
run-tests (minimum, test_checkpoint_epoch)	7m 28s
run-tests (minimum, test_rest)	12m 2s
	2h 15m 35s

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