code: def get_options(self, section='default', opt_keys=None, vars=None):
          
          vars = vars if vars else self.default_vars
          conf = self.parser
          opts = {}
          if opt_keys is None:
              if conf is None:
                  opt_keys = {}
              else:
                  if not self.robust or conf.has_section(section):
                      opt_keys = conf.options(section)
                  else:
                      opt_keys = {}
          else:
              logger.debug('conf: %s' % conf)
              copts = conf.options(section) if conf else {}
              opt_keys = set(opt_keys).intersection(set(copts))
          for option in opt_keys:
              logger.debug(f'option: {option}, vars: {vars}')
              opts[option] = conf.get(section, option, vars=vars)
          return opts
docs: Get all options for a section.  If ``opt_keys`` is given return
          only options with those keys.