URL       = FunctionParameters["Bitrix24_URL"];
    MessageID = FunctionParameters["Bitrix24_ChatMessageID"];

    Text = "New message text";

    Result = OPI_Bitrix24.EditMessage(URL, MessageID, Text);

    URL       = FunctionParameters["Bitrix24_Domain"];
    Token     = FunctionParameters["Bitrix24_Token"];
    MessageID = FunctionParameters["Bitrix24_UserMessageID"];

    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.EditMessage(URL, MessageID, Text, Attachments, Token);