{"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"Ident::new(kw::UnderscoreLifetime,"}]}
            Ident::new(kw::UnderscoreLifetime, self.lower_span(span)),
            self.next_id(),
            hir::LifetimeKind::ImplicitObjectLifetimeDefault,