code: async def sinter(self, keys, *args):
          
          k = list_or_args(keys, args)
          res = await self.smembers(k[0])
  
          for arg in k[1:]:
              res &= await self.smembers(arg)
  
          return res
docs: Return the intersection of sets specified by ``keys``
  
          Cluster impl:
              Querry all keys, intersection and return result