public void Sign_Transaction()
 {
     //Just checking for no errors here- not yet sure how we verify this,
     //unless we call into another way of signing and verify the two match
     TransactionRequest t = new TransactionRequest()
     {
         AmountInCents = 124,
         CurrencyCode = Currency.GBP,
         Description = "test description"
     };
     RecurlyJs signer = new RecurlyJs("testkey","testapi");
     var signedString = signer.SignString(t.ToSignableString());
 }