let payer_pubkey = nodes[0].node.get_our_node_id();
let payee_pubkey = nodes[1].node.get_our_node_id();
let route_params = RouteParameters {
let payer_pubkey = nodes[0].node.get_our_node_id();
let payee_pubkey = nodes[1].node.get_our_node_id();
let route_params = RouteParameters {