code: def set_filters(self, can_filers=None):
          
          if self.__set_filters_has_been_called:
              log.warn("using filters is not supported like this, see note on IXXATBus")
          else:
              # allow the constructor to call this without causing a warning
              self.__set_filters_has_been_called = True
docs: Unsupported. See note on :class:`~can.interfaces.ixxat.IXXATBus`.