Wrapper

fun <T> runSynchronously(asyncFunc: (callback: CallbackWithResult<T>) -> UUID): T {
        var result: T? = null

        asyncFunc.invoke(object:CallbackWithResult<T> {
            override fun onResult(res: T) {
                result = res;
            }

            override fun onError() {
                throw RuntimeException();
            }
        })

        while (true) {
            result?.let { return it }
            Thread.sleep(250);
        }
    }