/// [`send_payment`]: Self::send_payment
pub fn send_spontaneous_payment(&self, route: &Route, payment_preimage: Option<PaymentPreimage>) -> Result<PaymentHash, PaymentSendFailure> {
let preimage = match payment_preimage {
/// [`send_payment`]: Self::send_payment
pub fn send_spontaneous_payment(&self, route: &Route, payment_preimage: Option<PaymentPreimage>) -> Result<PaymentHash, PaymentSendFailure> {
let preimage = match payment_preimage {