@gkorland - could you please take a look?
REDISMODULE_API int (*RedisModule_GetClientInfoById)(void *ci, uint64_t id) REDISMODULE_ATTR; https://github.com/redis/redis/blob/unstable/src/redismodule.h#L1108

Comment From: sundb

The return value represents success or failure, and the client data will be filled in the ci, which will be filled with different contents depending on the version number.