protected override async Task Default()
        {
            var url = await viewModel.GetUrl();

            var inlineMenu = new InlineMenu
            {
                Text     = "Create document:",
                Keyboard =
                    new InlineKeyboardMarkup(new[]
                {
                    new[]
                    {
                        new InlineKeyboardButton
                        {
                            Text         = "Create",
                            CallbackData = CallBack.RootPage.ToString(),
                            Url          = url
                        }
                    }
                })
            };

            viewModel.SendInlineKeyboard.Execute(inlineMenu);
        }