{"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"const"}]}
    const ATTRIBUTES: AcceptMapping<Self, S> = &[
impl<S: Stage> AttributeParser<S> for ConstStabilityParser {
        (&[sym::rustc_const_stable], template!(List: r#"feature = "name""#), |this, cx, args| {