code: def dns_rr(self, ips):
          
          api_name = 'opendns-dns_rr'
          fmt_url_path = u'dnsdb/name/a/{0}.json'
          return self._multi_get(api_name, fmt_url_path, ips)
docs: Get the domains related to input domains.
  
          Args:
              domains: an enumerable of strings as domains
          Returns:
              An enumerable of resource records and features