let path = OnionMessagePath {
intermediate_nodes: vec![nodes[1].get_node_pk(), nodes[2].get_node_pk()],
destination: Destination::Node(nodes[3].get_node_pk()),
let path = OnionMessagePath {
intermediate_nodes: vec![nodes[1].get_node_pk(), nodes[2].get_node_pk()],
destination: Destination::Node(nodes[3].get_node_pk()),