if err != nil {
			return cfg, err
		}

		kafkaArgs := kafka.Config{
			Enabled: enabled,
			Brokers: brokers,
			Topic:   getCfgVal(EnvKafkaTopic, k, kv.Get(KafkaTopic)),
			Version: getCfgVal(EnvKafkaVersion, k, kv.Get(KafkaVersion)),
		}

		kafkaArgs.TLS.Enable = getCfgVal(EnvKafkaTLS, k, kv.Get(KafkaTLS)) == config.EnableOn

type AuthNPlugin struct {
	args           Args
	client         *http.Client
	shutdownCtx    context.Context
	serviceMetrics *metrics
}

// Enabled returns if AuthNPlugin is enabled.
func Enabled(kvs config.KVS) bool {
	return kvs.Get(URL) != ""
}

// LookupConfig lookup AuthNPlugin from config, override with any ENVs.

	for _, hkv := range hkvs {
		var enabled bool
		if enableRequired {
			enabled = currKVS.Get(Enable) == EnableOn
		} else {
			// when enable arg is not required
			// then it is implicit on for the sub-system.
			enabled = true
		}
		v, _ := currKVS.Lookup(hkv.Key)
		if v == "" && !hkv.Optional && enabled {
			// Return error only if the
			// key is enabled, for state=off
			// let it be empty.