docs: def set_port_info(self, webport, mediaport, httpsport,
                                        onvifport, callback=None):
          '''
          Set http port and media port of camera.
          '''
          params = {'webPort'   : webport,
                    'mediaPort' : mediaport,
                    'httpsPort' : httpsport,
                    'onvifPort' : onvifport,
                   }
          return self.execute_command('setPortInfo', params, callback=callback)