code: def args_parser(self, name="monailabel"):
      parser = argparse.ArgumentParser(name)
      parser.add_argument(
          "-v", "--version", action="store_true", help="print version"
      )
  
      subparsers = parser.add_subparsers(help="sub-command help")
      if "start_server" in self.actions:
          parser_a = subparsers.add_parser(
              "start_server", help="Start Application Server"
          )
          self.args_start_server(parser_a)
          parser_a.set_defaults(action="start_server")
  
      if "apps" in self.actions:
          parser_b = subparsers.add_parser(
              "apps", help="list or download sample apps"
          )
          self.args_apps(parser_b)
          parser_b.set_defaults(action="apps")
  
      if "datasets" in self.actions:
          parser_c = subparsers.add_parser(
              "datasets", help="list or download sample datasets"
          )
          self.args_datasets(parser_c)
          parser_c.set_defaults(action="datasets")
  
      if "plugins" in self.actions:
          parser_d = subparsers.add_parser(
              "plugins", help="list or download viewer plugins"
          )
          self.args_plugins(parser_d)
          parser_d.set_defaults(action="plugins")
  
      return parser
  
imports: import argparse
  import json
  import logging
  import os
  import pathlib
  import platform
  import shutil
  import sys
  import uvicorn
  from monailabel import print_config
  from monailabel.config import settings
  from monailabel.utils.others.generic import init_log_config
label_desc: Use image node_id 6 for calling the Main obj's underlying member method code with example usage: obj.args_parser(name) and returns: parser