public static void SaveItems <T>(IEnumerable <T> items, string path) where T : class
{
Txt.SaveItemsToTextFile(items, $"{path}.txt");
Xml.SaveItemsToXml(items, $"{path}.xml");
}
public static void AddItem <T>(T item, string path)
{
Txt.SaveItemToTxtFile(item, $"{path}.txt");
Xml.AddItemToXml(item, $"{path}.xml");
}