Hello, is it possible loading extensions into REDISQL?

like:
db.enable_load_extension(True)
db.load_extension('./spellfix')

I'm trying
$ret = $redis->rawCommand('REDISQL.EXEC', $DbName, "SELECT load_extension('./spellfix');");
and getting
Fatal error: Uncaught exception 'RedisException' with message 'not authorized' in /opt/www/htdocs/www/wDb.php:794 Stack trace: #0 /opt/www/htdocs/www/wDb.php(794): Redis->rawcommand('REDISQL.EXEC', 'Db_1_2', 'SELECT load_ext...') #1 {main} thrown in /opt/www/htdocs/www/wDb.php on line 794