code: def get_router_intf(self, router_id):
          
          try:
              body = {}
              self.neutronclient.show_router(router_id, body=body)
          except Exception as exc:
              LOG.error("Failed to show router interface %(id)s "
                        "Exc %(exc)s", {'id': router_id, 'exc': str(exc)})
              return
docs: Retrieve the router interfaces. Incomplete, TODO(padkrish).