URL       = "https://b24-ar17wx.bitrix24.by/rest/1/1o2...";
    MessageID = "11572";

    Text = "New message text";

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

    URL       = "b24-ar17wx.bitrix24.by";
    Token     = "b529cb66006e9f06006b12e400000001000...";
    MessageID = "11574";

    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);