{"ast_node_type":"other","tokens":[{"end":43,"kind":"keyword","start":0,"text":"($cx:"}]}
    ($cx: expr, $unique_type_id: expr) => {
macro_rules! return_if_di_node_created_in_meantime {
        if let Some(di_node) = debug_context($cx).type_map.di_node_for_unique_id($unique_type_id) {