{"ast_node_type":"function","tokens":[{"end":70,"kind":"keyword","start":0,"text":"fn"}]}
    fn feature_list(attr: &Attribute) -> ThinVec<ast::MetaItemInner> {
pub fn features(sess: &Session, krate_attrs: &[Attribute], crate_name: Symbol) -> Features {
        if attr.has_name(sym::feature)