public async void InsertMessage()
        {
            var newMessage = new Message
            {
                SpecialBookName = SpecialBookName,
                Sender          = Sender,
                Receiver        = Receiver,
                MessageText     = MessageText
            };

            await MongoConnectionMessage.InsertOneAsync(newMessage);
        }
 public async void InsertMessage(Message newMessage)
 {
     await MongoConnectionMessage.InsertOneAsync(newMessage);
 }