code: def test_add_arguments_help():
      parser = LMTask.get_parser()
      with pytest.raises(SystemExit):
          parser.parse_args(["--help"])
  
imports: import pytest
  from espnet2.tasks.lm import LMTask
label_desc: Use image node_id 2 for calling a global function with example usage: test_add_arguments_help() without return types