code: def parse_bulk_delete(prs, conn):
      
      prs_delete = prs.add_parser(
          'bulk_delete', help='delete bulk records of specific zone')
      set_option(prs_delete, 'infile')
      conn_options(prs_delete, conn)
      prs_delete.add_argument('--domain', action='store',
                              help='delete records with specify zone')
      prs_delete.set_defaults(func=delete)
docs: Delete bulk_records.
  
      Arguments:
  
          prs:  parser object of argparse
          conn: dictionary of connection information