Function ri_health_checker_get_summary 

#[unsafe(no_mangle)]
pub extern "C" fn ri_health_checker_get_summary(
    checker: *mut CRiHealthChecker,
    service_name: *const c_char,
    out_healthy: *mut bool,
    out_success_rate: *mut f64,
    out_avg_response_ms: *mut u64,
) -> c_int