{"ast_node_type":"function","tokens":[{"end":53,"kind":"keyword","start":0,"text":"//!"}]}
//!     fn node_id(&'a self, n: &Nd) -> dot::Id<'a> {
//!     fn graph_id(&'a self) -> dot::Id<'a> { dot::Id::new("example2").unwrap() }
//!         dot::Id::new(format!("N{}", n)).unwrap()