Struct Client

client/sign/sign.go:21–30

type (
	Client struct {
		lock         sync.RWMutex
		signCount    atomic.Uint32
		instances    []*remote
		app          *auth.AppInfo
		httpClient   *http.Client
		extraHeaders http.Header
		log          func(string, ...any)
		lastTestTime time.Time
	}

	remote struct {
		server  string