how to get/read original result format, like ReadReply

[ygzhang-cn]

My cache is a local memory cache and Redis proxy wrapper that encountered difficulties in building proxy interfaces. When setting val, it was serialized and encoded uniformly, but when getting val, the result format returned was string, which cannot support automatic decoding of switch val. (type) {}

rdb.Get(ctx, "foo").Result() to get of string.
rdb.Do(ctx, "get", key).Result() to get of string.