private static void DisplayShortMessage(object sender, AccountHandlerEventArgs e)
{
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine($"Account message: {e.Message}\n\n");
Console.ResetColor();
}
private static void DisplayMessage(object sender, AccountHandlerEventArgs e)
{
Console.WriteLine($"{(sender as Account).Type}\nTransaction amount: {e.Sum}\nBalance after transaction: {(sender as Account).Balance}\nMessage:{e.Message}");
}