code: def main():
      # read in the arguments
      # environment file is required
      # either modelfile or modellist can be present but not both. If neither, then the environment file should contain info on the script.
      parser = argparse.ArgumentParser()
      parser.add_argument(
          "-e",
          "--environment",
          help="The environment file that contains all the information on what and how to profile.",
      )
      group = parser.add_mutually_exclusive_group()
      group.add_argument(
          "-f",
          "--modelfile",
          help="A file containing the list of models to profile. Use only -m or -f but not both.",
      )
      group.add_argument(
          "-m",
          "--modellist",
          help="comma separated list of models to profile. Use only -m or -f but not both.",
      )
      args = parser.parse_args()
  
      if not args.environment:
          print(
              "Profiler needs an environment file. Please see documentation for more information."
          )
          print("Exiting.")
          sys.exit(2)
  
      script_flags = " -e " + args.environment
  
      if args.modellist:
          script_flags += " -m " + args.modellist
      elif args.modelfile:
          script_flags += " -f " + args.modelfile
      else:
          print(
              "**Warning**: If modellist or modelfile not provided, environment file should have script info. Please see documentation for more information."
          )
  
      script_command = "profiler.sh" + script_flags
  
      # run script command
      os.system(script_command)
  
imports: import argparse
  import sys
  import os
label_desc: Use image node_id 1 for calling a global function with example usage: main() without return types