size_t rdbSavedObjectLen(robj *o, robj *key) {
    ssize_t len = rdbSaveObject(NULL,o,key);
    serverAssertWithInfo(NULL,o,len != -1);
    return len;
}
size_t rdbSavedObjectLen(robj *o, robj *key) {
    ssize_t len = rdbSaveObject(NULL,o,key);
    serverAssertWithInfo(NULL,o,len != -1);
    return len;
}