docs: def getLinkProperties(self, wanInterfaceId=1, timeout=1):
          """Execute GetCommonLinkProperties action to get WAN link properties.
  
          :param int wanInterfaceId: the id of the WAN device
          :param float timeout: the timeout to wait for the action to be executed
          :return: WAN link properties
          :rtype: WanLinkProperties
          """
          namespace = Wan.getServiceType("getLinkProperties") + str(wanInterfaceId)
          uri = self.getControlURL(namespace)
  
          results = self.execute(uri, namespace, "GetCommonLinkProperties", timeout=timeout)
  
          return WanLinkProperties(results)