LDKPaymentFailureReason_PaymentExpired,
/**
* We failed to find a route while retrying the payment.
+ *
+ * Note that this generally indicates that we've exhausted the available set of possible
+ * routes - we tried the payment over a few routes but were not able to find any further
+ * candidate routes beyond those.
*/
LDKPaymentFailureReason_RouteNotFound,
/**