{"ast_node_type":"variable","tokens":[{"end":62,"kind":"keyword","start":0,"text":"let"}]}
            let mut cmd = std::process::Command::new("pprof");
            eprintln!("Profile data saved to:\n\n    {}\n", profile_data.display());
            cmd.arg("-svg").arg(std::env::current_exe().unwrap()).arg(&profile_data);