code: def multiget(self, pairs, **params):
          
          if self._multiget_pool:
              params['pool'] = self._multiget_pool
          return riak.client.multi.multiget(self, pairs, **params)
docs: Fetches many keys in parallel via threads.
  
          :param pairs: list of bucket_type/bucket/key tuple triples
          :type pairs: list
          :param params: additional request flags, e.g. r, pr
          :type params: dict
          :rtype: list of :class:`RiakObjects <riak.riak_object.RiakObject>`,
              :class:`Datatypes <riak.datatypes.Datatype>`, or tuples of
              bucket_type, bucket, key, and the exception raised on fetch