class_docstr: For tests that are not specific to any command.
class_docstr_tok: ["For","tests","that","are","not","specific","to","any","command","."]
code: def test_parse_args_help(self):
      parser = cmd_line_parser.CmdLineParser()
      with self.assertRaises(argument_parser.ParserNormalExit):
          parser.parse_line("-h")
      with self.assertRaises(argument_parser.ParserNormalExit):
          parser.parse_line("--help")
      with self.assertRaises(argument_parser.ParserNormalExit):
          parser.parse_line("run -h")
      with self.assertRaises(argument_parser.ParserNormalExit):
          parser.parse_line("run --help")
  
imports: from __future__ import annotations
  import sys
  from unittest import mock
  from absl.testing import absltest
  from google.generativeai.notebook import argument_parser
  from google.generativeai.notebook import cmd_line_parser
  from google.generativeai.notebook import model_registry
  from google.generativeai.notebook import parsed_args_lib
  from google.generativeai.notebook import post_process_utils
  from google.generativeai.notebook.lib import llm_function
  from google.generativeai.notebook.lib import llmfn_output_row
  from google.generativeai.notebook.lib import llmfn_outputs
  from google.generativeai.notebook.lib import model
label_desc: Use image node_id 1 for calling the CmdLineParserCommonTest obj's underlying member method code with example usage: obj.test_parse_args_help() without return types