{"ast_node_type":"variable","tokens":[{"end":79,"kind":"keyword","start":0,"text":"let"}]}
                let event_arg = profiler.get_or_alloc_cached_string(event_arg);
            let event_id = if profiler.event_filter_mask.contains(EventFilter::FUNCTION_ARGS) {
                builder.from_label_and_arg(event_label, event_arg)