// telegram_client.go package main import ( "context" "github.com/go-telegram/bot" "github.com/go-telegram/bot/models" ) // TelegramClient defines the methods required from the Telegram bot. type TelegramClient interface { SendMessage(ctx context.Context, params *bot.SendMessageParams) (*models.Message, error) SendAudio(ctx context.Context, params *bot.SendAudioParams) (*models.Message, error) SetMyCommands(ctx context.Context, params *bot.SetMyCommandsParams) (bool, error) GetFile(ctx context.Context, params *bot.GetFileParams) (*models.File, error) FileDownloadLink(f *models.File) string Start(ctx context.Context) }