{"ast_node_type":"other","tokens":[{"end":62,"kind":"keyword","start":0,"text":"///"}]}
    ///   [`DiagCtxtHandle::try_steal_modify_and_emit_err`] or
    ///   provided `span` and `key` through
    ///   [`DiagCtxtHandle::try_steal_replace_and_emit_err`]. These do not allow