Launch Darkly - Feature Requester - Auth

Question

I am trying to fetch Launch Darkly flag values. The constructor present in RedisFeatureRequester file is building _redisOptions only with following values.

package : "launchdarkly/launchdarkly-php": "^3.5"

$this->_redisOptions = array(
                "scheme" => "tcp",
                "timeout" => isset($options['redis_timeout']) ? $options['redis_timeout'] : 5,
                "host" => isset($options['redis_host']) ? $options['redis_host'] : 'localhost',
                "port" => isset($options['redis_port']) ? $options['redis_port'] : 6379,);

Is there a way that we can assign username and password as well here ? Or do we need to inject username and password after we create a client.