{"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"self.def_descr(opaque_lifetime_param_def_id.to_def_id())"}]}
            self.def_descr(opaque_lifetime_param_def_id.to_def_id())
            "{opaque_lifetime_param_def_id:?} is a {}",
        );