code: def list_routers_on_hosting_device(self, client, hosting_device_id,
                                         **_params):
          
          res_path = hostingdevice.HostingDevice.resource_path
          return client.get((res_path + DEVICE_L3_ROUTERS) %
                            hosting_device_id, params=_params)
docs: Fetches a list of routers hosted on a hosting device.