let (payment_preimage, payment_hash, payment_secret) = get_payment_preimage_hash!(nodes[3]);
let mut route_params = RouteParameters {
payment_params: PaymentParameters::from_node_id(nodes[3].node.get_our_node_id(), TEST_FINAL_CLTV)
let (payment_preimage, payment_hash, payment_secret) = get_payment_preimage_hash!(nodes[3]);
let mut route_params = RouteParameters {
payment_params: PaymentParameters::from_node_id(nodes[3].node.get_our_node_id(), TEST_FINAL_CLTV)