data

type Info struct {
	WelcomeMessage *tb.Message
	RightAnswer    int
}

type MemoryStorage struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

type Storage interface {
	Add(chat *tb.Chat, user *tb.User, i Info)
	Remove(chat *tb.Chat, user *tb.User)
	Exist(chat *tb.Chat, user *tb.User) (Info, bool)
}