How to use some tuples with an Enum object!

tuples.cs

            for (int i = 0; i < insertDataTables.Count(); i++)
            {
                List<(CurrencyIsoCode currency, bool useZero)> currencies = new List<(CurrencyIsoCode, bool)>{
                    (CurrencyIsoCode.EUR,true),
                    (CurrencyIsoCode.USD,true),
                    (CurrencyIsoCode.CAD,true),
                    (CurrencyIsoCode.MXN,true),
                    (CurrencyIsoCode.BRL,true),
                    (CurrencyIsoCode.COP,true),
                };
                for (int j = 0; j < currencies.Count; j++)
                {
                    await BatchPriceBookUpdates(insertDataTables.ElementAt(i), updateDataTables.ElementAt(i), product2dict,
                        PriceBook.Standard,
                        currencies[j].currency
                    ) ;
                }
            }