code: def sendToViewChanger(self, msg, frm):
          
          if (isinstance(msg, InstanceChange) or
                  self.msgHasAcceptableViewNo(msg, frm)):
              logger.debug("{} sending message to view changer: {}".
                           format(self, (msg, frm)))
              self.msgsToViewChanger.append((msg, frm))
docs: Send the message to the intended view changer.
  
          :param msg: the message to send
          :param frm: the name of the node which sent this `msg`