{"ast_node_type":"other","tokens":[{"end":45,"kind":"keyword","start":0,"text":"if"}]}
        if !ident.as_str().starts_with('_') {
    fn insert_unused_macro(&mut self, ident: Ident, def_id: LocalDefId, node_id: NodeId) {
            self.r.unused_macros.insert(def_id, (node_id, ident));