code: def load_cfg_fom_args(description="Config file options."):
      """Loads sweep cfg from command line argument."""
      parser = argparse.ArgumentParser(description=description)
      help_str = "Path to sweep_cfg file"
      parser.add_argument("--sweep-cfg", help=help_str, required=True)
      args = parser.parse_args()
      if len(sys.argv) == 1:
          parser.print_help()
          sys.exit(1)
      load_cfg(args.sweep_cfg)
  
file_path: pycls/pycls/sweep/config.py
imports: import argparse
  import getpass
  import multiprocessing
  import os
  import sys
  from pycls.core.config import cfg
  from pycls.sweep.samplers import validate_sampler
  from yacs.config import CfgNode
label_desc: Use image node_id 3 for calling a global function with example usage: load_cfg_fom_args(description) without return types