Returns the scores associated with the specified `members` in the sorted set stored at `key`. For every `member` that does not exist in the sorted set, a `nil` value is returned. @return @array-reply: list of scores or `nil` associated with the specified `member` values (a double precision floating point number), represented as strings. @examples ```cli ZADD myzset 1 "one" ZADD myzset 2 "two" ZMSCORE myzset "one" "two" "nofield" ```