Bangle 2. How to set GPS Serial1 baud rate?

it does not work unfortunately. no delay.

>function delay(ms) {
:  return new Promise(resolve => setTimeout(resolve, ms));
:};
=function (ms) { ... }

>print(new Date()); delay(5000); print(new Date());
Date: Wed Dec 31 1969 19:05:07 GMT-0500
Date: Wed Dec 31 1969 19:05:07 GMT-0500
=undefined
>