type Opa struct {
	args   Args
	client *http.Client
}

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

// LookupConfig lookup Opa from config, override with any ENVs.
func LookupConfig(kv config.KVS, transport *http.Transport, closeRespFn func(io.ReadCloser)) (Args, error) {
	args := Args{}

			QueueSize:  queueSize,
			QueueDir:   getCfgVal(EnvAuditWebhookQueueDir, k, kv.Get(QueueDir)),
			Name:       auditTargetNamePrefix + k,
		}
	}
	return cfg, nil
}

// LookupConfigForSubSys - lookup logger config, override with ENVs if set, for the given sub-system
func LookupConfigForSubSys(ctx context.Context, scfg config.Config, subSys string) (cfg Config, err error) {
	switch subSys {
	case config.LoggerWebhookSubSys:

	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.
func LookupConfig(kv config.KVS, transport *http.Transport, closeRespFn func(io.ReadCloser), serverRegion string) (Args, error) {
	args := Args{}

	}
	return cfg
}

// LDAP keys and envs.
const (
	ServerAddr         = "server_addr"
	SRVRecordName      = "srv_record_name"
	LookupBindDN       = "lookup_bind_dn"
	LookupBindPassword = "lookup_bind_password"
	UserDNSearchBaseDN = "user_dn_search_base_dn"
	UserDNSearchFilter = "user_dn_search_filter"
	GroupSearchFilter  = "group_search_filter"
	GroupSearchBaseDN  = "group_search_base_dn"

	}

	dur := time.Duration(d) * time.Second

	if dur < minExpiry || dur > maxExpiry {
		return 0, auth.ErrInvalidDuration
	}
	return dur, nil
}

// Lookup returns a new Config by merging the given K/V config
// system with environment variables.
func Lookup(kvs config.KVS) (Config, error) {
	if err := config.CheckValidKeys(config.IdentityTLSSubSys, kvs, DefaultKVS); err != nil {
		return Config{}, err
	}
	cfg := Config{}

	c.transport = ncfg.transport
	c.BaseURL = baseURL

	if isDevEnv {
		c.BaseURL = os.Getenv("_MINIO_SUBNET_URL")
		if c.BaseURL == "" {
			c.BaseURL = baseURLDev
		}
	}
}

// LookupConfig - lookup config and override with valid environment settings if any.
func LookupConfig(kvs config.KVS, transport http.RoundTripper) (cfg Config, err error) {
	if err = config.CheckValidKeys(config.SubnetSubSys, kvs, DefaultKVS); err != nil {

		}
	}()

	if objAPI == nil {
		return errServerNotInitialized
	}

	srvCfg, err := readConfigWithoutMigrate(GlobalContext, objAPI)
	if err != nil {
		return err
	}

	bootstrapTraceMsg("lookup the configuration")

	// Override any values from ENVs.
	lookupConfigs(srvCfg, objAPI)

	// hold the mutex lock before a new config is assigned.
	globalServerConfigMu.Lock()
	globalServerConfig = srvCfg

	for _, kv := range kvs {
		if kv.Key == key {
			return kv, true
		}
	}
	return KV{}, false
}

// Lookup - lookup a key in a list of KVS
func (kvs KVS) Lookup(key string) (string, bool) {
	for _, kv := range kvs {
		if kv.Key == key {
			return kv.Value, true
		}
	}
	return "", false
}

// Config - MinIO server config structure.
type Config map[string]map[string]KVS

type AuthZPlugin struct {
	args   Args
	client *http.Client
}

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

// LookupConfig lookup AuthZPlugin from config, override with any ENVs.
func LookupConfig(s config.Config, httpSettings xhttp.ConnSettings, closeRespFn func(io.ReadCloser)) (Args, error) {
	args := Args{}