package captcha var _ Store = (*store)(nil) type Store interface { Set(id string, value string) Get(id string, clear bool) string Verify(id, answer string, clear bool) bool } type store struct { } func (s store) Set(id string, value string) { } func (s store) Get(id string, clear bool) string { return "" } func (s store) Verify(id, answer string, clear bool) bool { return false } func NewStore() { } func GenerateCaptcha() { }