code: def _process_args(self, analysis, args):
      
      if args.exit_code:
        self.return_exit_code = args.exit_code
      if args.no_plots:
        self.skip_plots = args.no_plots
      if args.start:
        analysis.ts_start = naarad.utils.get_standardized_timestamp(args.start, None)
      if args.end:
        analysis.ts_end = naarad.utils.get_standardized_timestamp(args.end, None)
      if args.variables:
        analysis.variables = naarad.utils.get_variables(args)
      return CONSTANTS.OK
docs: When Naarad is run in CLI mode, get the CL arguments and update the analysis
      :param: analysis: The analysis being processed
      :param: args: Command Line Arguments received by naarad