{"ast_node_type":"other","tokens":[{"end":84,"kind":"keyword","start":0,"text":"*hygiene_id"}]}
            *hygiene_id = HygieneId::new(parent_ctx.opaque_and_semitransparent(db));
            // and use its parent expansion.
            *hygiene_info = parent_ctx.outer_expn(db).map(|expansion| {