OpenIntegrations/docs/en/examples/Telegram/SendAudio.txt

    Token     = FunctionParameters["Telegram_Token"];
    ChatID    = FunctionParameters["Telegram_ChatID"];
    ChannelID = FunctionParameters["Telegram_ChannelID"];
    Text      = FunctionParameters["String"];
    Audio     = FunctionParameters["Audio"];

    AudioPath = GetTempFileName("mp3");
    CopyFile(Audio, AudioPath);

    AudioDD = New BinaryData(AudioPath);

    Result = OPI_Telegram.SendAudio(Token, ChatID, Text, Audio);

    Result = OPI_Telegram.SendAudio(Token, ChannelID, Text, AudioPath);

    Result = OPI_Telegram.SendAudio(Token, ChannelID, Text, AudioDD);