{"ast_node_type":"import","tokens":[{"end":79,"kind":"keyword","start":0,"text":"///"}]}
    /// Allows the use of `#[cfg(ub_checks)` to check if UB checks are enabled.
    (unstable, cfg_target_thread_local, "1.7.0", Some(29594)),
    (unstable, cfg_ub_checks, "1.79.0", Some(123499)),