URL    = FunctionParameters["Bitrix24_URL"];
    ChatID = FunctionParameters["Bitrix24_HookChatID"];

    Result = OPI_Bitrix24.LeaveChat(URL, ChatID);

    OPI_TestDataRetrieval.WriteLog(Result, "LeaveChat (wh)", "Bitrix24");

    URL    = FunctionParameters["Bitrix24_Domain"];
    Token  = FunctionParameters["Bitrix24_Token"];
    ChatID = FunctionParameters["Bitrix24_ChatID"];

    Result = OPI_Bitrix24.LeaveChat(URL, ChatID, Token);