{"ast_node_type":"function","tokens":[{"end":91,"kind":"keyword","start":0,"text":"fn"}]}
    fn start_pass(&self, pass: cranelift_codegen::timing::Pass) -> Box<dyn std::any::Any> {
impl cranelift_codegen::timing::Profiler for MeasuremeProfiler {
        let mut timing_guard = Box::new(TimingGuard {