    URL       = "https://b24-ar17wx.bitrix24.by/rest/1/av5...";
    TaskID    = "8718";
    ElementID = "6160";

    Result = OPI_Bitrix24.DeleteTasksChecklistElement(URL, TaskID, ElementID);

    TaskID    = "8720";
    ElementID = "6164";

    URL   = "b24-ar17wx.bitrix24.by";
    Token = "a5b00469006e9f06006b12e400000001000...";

    Result = OPI_Bitrix24.DeleteTasksChecklistElement(URL, TaskID, ElementID, Token);