{"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"(unstable,"}]}
    (unstable, asm_unwind, "1.58.0", Some(93334)),
    /// Allows the `may_unwind` option in inline assembly.
    /// Allows users to enforce equality of associated constants `TraitImpl<AssocConst=3>`.