{"ast_node_type":"other","tokens":[{"end":53,"kind":"keyword","start":0,"text":"(unstable,"}]}
    (unstable, used_with_arg, "1.60.0", Some(93798)),
    /// Allows using the `#[used(linker)]` (or `#[used(compiler)]`) attribute.
    /// Allows use of attributes in `where` clauses.