{"ast_node_type":"other","tokens":[{"end":62,"kind":"keyword","start":0,"text":"parent.underscore_disambiguator.update(|d|"}]}
            parent.underscore_disambiguator.update(|d| d + 1);
        let key = BindingKey::new_disambiguated(ident, ns, || {
            parent.underscore_disambiguator.get()