code: def disconnect(self):
          
          try:
              tmp = self._mqttc
          except AttributeError:
              logger.info('No MQTT Client instance found so nothing to disconnect from.')
              return
  
          self._disconnected = False
          self._unexpected_disconnect = False
          self._mqttc.on_disconnect = self._on_disconnect
  
          self._mqttc.disconnect()
  
          timer_start = time.time()
          while time.time() < timer_start + self._loop_timeout:
              if self._disconnected or self._unexpected_disconnect:
                  break;
              self._mqttc.loop()
          if self._unexpected_disconnect:
              raise RuntimeError("The client disconnected unexpectedly")
docs: Disconnect from MQTT Broker.
  
          Example:
          | Disconnect |