code: def get_all_hosted_routers(self, context):
          
          cctxt = self.client.prepare()
          return cctxt.call(context, 'cfg_sync_all_hosted_routers',
                            host=self.host)
docs: Make a remote process call to retrieve the sync data for
             routers that have been scheduled to a hosting device.
  
          :param context: session context