code: def main():
      parser = argparse.ArgumentParser()
  
      parser.add_argument(
          "-v",
          "--version",
          action="version",
          version=pkg_resources.require("advisor")[0].version,
          help="Display sdk version",
      )
  
      main_subparser = parser.add_subparsers(
          dest="command_group", help="Commands"
      )
  
      # subcommand: study
      study_parser = main_subparser.add_parser(
          "study", help="Commands about study"
      )
      study_subparser = study_parser.add_subparsers(
          dest="study_command", help="Subcommands of study"
      )
  
      # subcommand: study list
      study_list_parser = study_subparser.add_parser(
          "list", help="List studies"
      )
      study_list_parser.set_defaults(func=list_studies)
  
      # subcommand: study describe
      study_describe_parser = study_subparser.add_parser(
          "describe", help="Describe studiy"
      )
      study_describe_parser.add_argument(
          "-s",
          "--study_name",
          dest="study_name",
          help="The id of the resource",
          required=True,
      )
      study_describe_parser.set_defaults(func=describe_studie)
  
      # subcommand: trial
      trial_parser = main_subparser.add_parser(
          "trial", help="Commands about trial"
      )
      trial_subparser = trial_parser.add_subparsers(
          dest="trial_command", help="Subcommands of trial"
      )
  
      # subcommand: trial list
      trial_list_parser = trial_subparser.add_parser(
          "list", help="List trials"
      )
      trial_list_parser.add_argument(
          "-s",
          "--study_name",
          dest="study_name",
          help="The id of the resource",
          required=True,
      )
      trial_list_parser.set_defaults(func=list_trials)
  
      # subcommand: run
      run_parser = main_subparser.add_parser(
          "run", help="Commands about run"
      )
      run_parser.add_argument(
          "-f",
          "--file",
          dest="run_file",
          help="The run file",
          required=True,
      )
      run_parser.set_defaults(func=run_with_file)
  
      # Display help information by default
      if len(sys.argv) == 1:
          args = parser.parse_args(["-h"])
      else:
          args = parser.parse_args(sys.argv[1:])
      args.func(args)
  
file_path: advisor/advisor_client/advisor_client/commandline/command.py
imports: import argcomplete
  import argparse
  import logging
  import pkg_resources
  import sys
  import pprint
  import json
  from prettytable import PrettyTable
  from advisor_client.client import AdvisorClient
  from advisor_client.runner.runner_launcher import RunnerLauncher
label_desc: Use image node_id 9 for calling a global function with example usage: main() without return types