code: def get_physical_port(self):
          
          obj = None
          if self.is_link_aggregation():
              obj = UnityLinkAggregation.get(self._cli, self.get_id())
          else:
              obj = UnityEthernetPort.get(self._cli, self.get_id())
          return obj
docs: Returns the link aggregation object or the ethernet port object.