bindings.COption_u64Z_free(no_u64);
long route_params = bindings.RouteParameters_new(payee, 1000, 42);
long route = bindings.find_route(peer1.node_id, route_params, peer1.router, peer1_chans,
bindings.COption_u64Z_free(no_u64);
long route_params = bindings.RouteParameters_new(payee, 1000, 42);
long route = bindings.find_route(peer1.node_id, route_params, peer1.router, peer1_chans,