Optional:    true,
			Type:        "number",
		},
		config.HelpKV{
			Key:         apiStaleUploadsExpiry,
			Description: `set to expire stale multipart uploads older than this values` + defaultHelpPostfix(apiStaleUploadsExpiry),
			Optional:    true,
			Type:        "duration",
		},
		config.HelpKV{
			Key:         apiStaleUploadsCleanupInterval,

	// exposed by the server
	Secret bool `json:"-"`

	// Indicates if sub-sys supports multiple targets.
	MultipleTargets bool `json:"multipleTargets"`
}

// HelpKVS - implement order of keys help messages.
type HelpKVS []HelpKV

// Lookup - lookup a key from help kvs.
func (hkvs HelpKVS) Lookup(key string) (HelpKV, bool) {
	for _, hkv := range hkvs {
		if hkv.Key == key {
			return hkv, true