code: def main(args=None):
      
      args = get_args(args)
  
      utils.init_log(args.log_level)
  
      if ".csv" not in args.input_file.lower():
          logger.warning("Make sure the input file '%s' is in CSV format", args.input_file)
  
      try:
          records = csvtools.get_imported_data(args.input_file)
      except (EnvironmentError, Dump2PolarionException) as err:
          logger.fatal(err)
          return 1
  
      # check if all columns required by `pytest_polarion_cfme` are there
      required_columns = {"id": "ID", "title": "Title"}
      missing_columns = [required_columns[k] for k in required_columns if k not in records.results[0]]
      if missing_columns:
          logger.fatal(
              "The input file '%s' is missing following columns: %s",
              args.input_file,
              ", ".join(missing_columns),
          )
          return 1
  
      try:
          dump2sqlite(records, args.output_file)
      # pylint: disable=broad-except
      except Exception as err:
          logger.exception(err)
          return 1
  
      return 0
docs: Main function for cli.