code: def add_reporting_args(parser):
      
      g = parser.add_argument_group('Reporting options')
  
      g.add_argument('-l', '--log-file', default=None,
              type = str_type, metavar = file_mv, help = textwrap.dedent("""\
                  Path of log file (if specified, report to stdout AND file."""))
  
      g.add_argument('-q', '--quiet', action='store_true',
              help = 'Only output errors and warnings.')
  
      g.add_argument('-v', '--verbose', action='store_true',
              help = 'Enable verbose output. Ignored if --quiet is specified.')
  
      return parser
docs: Add reporting arguments to an argument parser.
  
      Parameters
      ----------
      parser: `argparse.ArgumentParser`
  
      Returns
      -------
      `argparse.ArgumentGroup`
          The argument group created.