code: def _bfd_multiplier(self, **kwargs):
          
          int_type = kwargs['int_type']
          method_name = 'interface_%s_bfd_interval_multiplier' % int_type
          bfd_multiplier = getattr(self._interface, method_name)
          config = bfd_multiplier(**kwargs)
          if kwargs['delete']:
              tag = 'multiplier'
              config.find('.//*%s' % tag).set('operation', 'delete')
          return config
docs: 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