f add payment hash and id methods to new ScoringRouter method

Author: valentinewallace

lightning-invoice/src/payment.rs

@@ -270,6 +270,16 @@ pub trait Payer {
 ///
 /// [`Router`]: lightning::routing::router::Router
 pub trait ScoringRouter: Router {
+	/// Finds a [`Route`] between `payer` and `payee` for a payment with the given values. Includes
+	/// `PaymentHash` and `PaymentId` in case the underlying implementation wants to look up a
+	/// precomputed route for probing.
+	fn find_route_with_id(
+		&self, payer: &PublicKey, route_params: &RouteParameters,
+		first_hops: Option<&[&ChannelDetails]>, inflight_htlcs: InFlightHtlcs,
+		_payment_hash: PaymentHash, _payment_id: PaymentId
+	) -> Result<Route, LightningError> {
+		self.find_route(payer, route_params, first_hops, inflight_htlcs)
+	}
 	/// Lets the router know that payment through a specific path has failed.
 	fn notify_payment_path_failed(&self, path: &[&RouteHop], short_channel_id: u64);
 	/// Lets the router know that payment through a specific path was successful.