{"ast_node_type":"other","tokens":[{"end":11,"kind":"keyword","start":0,"text":"gated!("}]}
    gated!(
    rustc_attr!(TEST, rustc_mir, Normal, template!(List: "arg1, arg2, ..."), DuplicatesOk),
        custom_mir, Normal, template!(List: r#"dialect = "...", phase = "...""#),