const users = new Set(...context.forwards.map((item) => item.senderId));
var target = document.querySelector('.postroeno_calculator_frame');
var items = [1, 2, 3, 4, 5];
return API.groups.getById({group_ids: items});
https://api.vk.com/method/execute?code=...
https://regex101.com/r/G85wGn/1