URL    = FunctionParameters["Bitrix24_URL"];
    ChatID = "chat" + FunctionParameters["Bitrix24_HookChatID"];
    Text   = "Message text";
    Image  = "https://raw.githubusercontent.com/Bayselonarrend/OpenIntegrations/main/service/test_data/picture.jpg";
    File   = "https://github.com/Bayselonarrend/OpenIntegrations/raw/main/service/test_data/document.docx";

    Attachments = New Array;
    Attachments.Add(OPI_Bitrix24.GetPictureBlock("Image1"  , Image));
    Attachments.Add(OPI_Bitrix24.GetFileBlock("File1.docx" , File));

    Result = OPI_Bitrix24.SendMessage(URL, ChatID, Text, Attachments);

    URL    = FunctionParameters["Bitrix24_Domain"];
    Token  = FunctionParameters["Bitrix24_Token"];
    UserID = 10;

    Result = OPI_Bitrix24.SendMessage(URL, UserID, Text, , Token);