{"ast_node_type":"other","tokens":[{"end":21,"kind":"keyword","start":0,"text":"f.debug_map()"}]}
        f.debug_map()
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
            .entries(self.arena.iter().map(|(id, data)| (u32::from(id.into_raw()), data)))