code: def add_change(self, action, name, type, ttl=600,
              alias_hosted_zone_id=None, alias_dns_name=None, identifier=None,
              weight=None):
          
          change = Record(name, type, ttl,
                  alias_hosted_zone_id=alias_hosted_zone_id,
                  alias_dns_name=alias_dns_name, identifier=identifier,
                  weight=weight)
          self.changes.append([action, change])
          return change
docs: Add a change request