nodes[0].node.send_payment(payment_hash, RecipientOnionFields::spontaneous_empty(),
PaymentId(payment_hash.0), route_params, Retry::Attempts(0)).unwrap();
check_added_monitors(&nodes[0], 1);
nodes[0].node.send_payment(payment_hash, RecipientOnionFields::spontaneous_empty(),
PaymentId(payment_hash.0), route_params, Retry::Attempts(0)).unwrap();
check_added_monitors(&nodes[0], 1);