docs: def extract_file_args(subparsers):
      """Add the command line options for the extract_file operation"""
      extract_parser = subparsers.add_parser('extract_file',
                                             help='Extract a single secret from'
                                             'Vault to a local file')
      extract_parser.add_argument('vault_path',
                                  help='Full path (including key) to secret')
      extract_parser.add_argument('destination',
                                  help='Location of destination file')
      base_args(extract_parser)