code: def on_bandwidth_group_change(self, bandwidth_group):
          
          if not isinstance(bandwidth_group, IBandwidthGroup):
              raise TypeError("bandwidth_group can only be an instance of type IBandwidthGroup")
          self._call("onBandwidthGroupChange",
                       in_p=[bandwidth_group])
docs: Notification when one of the bandwidth groups change.
  
          in bandwidth_group of type :class:`IBandwidthGroup`
              The bandwidth group which changed.