Return the BFD multiplier XML.

        You should not use this method.
        You probably want `BGP.bfd`.

        Args:
            min_tx (str): BFD transmit interval in milliseconds (300, 500, etc)
            delete (bool): Remove the configuration if ``True``.

        Returns:
            XML to be passed to the switch.

        Raises:
            None

def _bfd_multiplier(self, **kwargs):
        """Return the BFD multiplier XML.

        You should not use this method.
        You probably want `BGP.bfd`.

        Args:
            min_tx (str): BFD transmit interval in milliseconds (300, 500, etc)
            delete (bool): Remove the configuration if ``True``.

        Returns:
            XML to be passed to the switch.

        Raises:
            None
        """
        method_name = 'rbridge_id_router_router_bgp_router_bgp_attributes_' \
                      'bfd_interval_multiplier'
        bfd_multiplier = getattr(self._rbridge, method_name)
        config = bfd_multiplier(**kwargs)
        if kwargs['delete']:
            tag = 'multiplier'
            config.find('.//*%s' % tag).set('operation', 'delete')
        return config