public List <(TransactionId transactionIds, decimal tip)> GetTransactionsAndTip()
{
return(this.PerformOperation(db => {
return db.PublicTransactions.Select(t => new Tuple <TransactionId, decimal>(TransactionId.FromCompactString(t.TransactionId), t.Tip)).ToList();
}).Select(e => (e.Item1, e.Item2)).ToList());
}
